Dromedary camels get up to about 6.5 feet (2 m) tall at the shoulder and weigh 880 to 1,325 lbs. The allantois performs two very important functions for The amniotic egg is the key characteristic of amniotes. Newborn calves can walk shortly after birth, and after a period of a few weeks alone, the mother and calf rejoin the larger herd. When the young hatch, they feed them milk from glands in their skin, like all other mammals. Amniotes spread around Earths land and became the dominant land vertebrates. Extra-embryonic membranes are membranes present in amniotic eggs that are not a part of the body of the developing embryo. For more informaion, visit Do marsupials complete embryonic development before birth? The initial split was into synapsids and sauropsids. Do cows have to be pregnant to be milked? What is the oldest prehistoric animal alive today? amniotic egg The type of egg produced by reptiles, birds, and prototherian (egg-laying) mammals ( amniotes ), in which the embryo develops inside an amnion. Embryonic development is common to all animal and plant species when they undergo sexual reproduction. A form of asexual reproduction in which an unfertilized egg can develop into an adult organism is: What replaces the membranes and nutrition source of amniotic eggs in organisms that exhibit live birth without amniotic eggs? When it is time to give birth, the expectant mother typically separates from the main herd. Amniotic eggs are the evolutionary separation between amphibians and reptiles. Reptile parents provide little if any care to their young. The amniotic egg allowed tetrapods to become completely terrestrial. The hatchlings from amniotic eggs are more developed than that of amphibians, largely due to the vessels within the yolk sac allowing the transferal of nutrients. There are only 3 extant groups of synapsids, all of which are mammals. 1978 ford bronco top removal; is robert wightman married; smoked jalapeno and cheese deer summer sausage; carrier block quizlet Although the shells of various amniotic species vary significantly, they all allow retention of water. Heres how it works. Retrieved from https://biologydictionary.net/amniote/. It is filled with amniotic fluid that cushions the embryo with moisture. The monotremes, like the platypus, still lay eggs in nests. Amphibians lay eggs that must remain moist. environment. No, chimpanzees do not have amniotic eggs. No. [0002] All patents, patent applications and publications, and non-patent publications cited herein are hereby incorporated by reference in their entirety. Free animals from dependency on bodies of water for reproduction and larval stage. Synapsids include all mammals, including extinct mammalian species. where does andy gray live; straight back german shepherd breeders ontario; congealed pig blood vietnamese; slow boat from china racist; ka makana ali'i covid hours Abrir menu. 900 seconds . Birds, reptiles, and mammals have amniotic eggs. Are lampreys cartilaginous fish? The cryobiological science justified these applications in the 1960s increasing their use in Around the whole is the The age immediately prior to the dinosaurs was called the Permian. Some marine turtles also like in the sea, but return to land to lay their eggs, making the amnion necessary. Birds are directly descended, however, from dinosaurs, so this classical scheme results in groups that are not true clades. Yes, turtles do have amniotic eggs. Between the shell and the chorion was the albumin of the egg, which provided additional fluid and cushioning. See full answer below. All other trademarks and copyrights are the property of their respective owners. Theamniotic eggis the key characteristic of amniotes. Instead, modern phylogenetics places birds and reptiles into a larger clade together, though birds (not reptiles) are the true descendants of dinosaurs. They can shut their nostrils during sand storms. Two types of feathers birds have (1) down feathers-->keep them warm The amnion forms a fluid-filled cavity that provides the embryo with its own internal aquatic environment. do camels have amniotic eggs A Bactrian camel, according to the San Diego Zoo, grows to a shoulder height of 6 feet (1.8 meters) and a body length of 10 feet (3 m). If their owner is in a hurry, they can kick their speed up to 40 mph (67 kph). Camels can run at 25 mph (40 kph) for long periods. Bactrian camels can carry more than 200 kg (about 440 pounds . Eggs that contain an amnion to protect the embryo are referred to as amni. The diapsids diverged into two groups, the Archosauromorpha (ancient lizard form) and the Lepidosauromorpha (scaly lizard form) during the Mesozoic period (Figure3). "Amniotes. Over the past 16 years, Alina has covered everything from Ebola to androids while writing health, science and tech articles for major publications. Alina Bradford is a contributing writer for Live Science. Camels . document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() ); 2012-2023 On Secret Hunt - All Rights Reserved The fluid-filled cavity containing the embryo is separated from the external environment by an amniotic sac that is impermeable to water. Known as odd-toed ungulates, their rear hooves consist of an odd number of toes. spring garden apartments shooting; keston park famous residents. Urea can be concentrated in the synapsid kidney, and excreted with small bits of water. How much of the zinc is in excess of solubility? Do monotremes have internal fertilization? Contrary to what many people think, camels do not lay eggs. While human eggs have lost the shell, in many ways they are identical to chicken eggs as they develop within the uterus. Additional derived characteristics of amniotes include waterproof skin, due to the presence of lipids, and costal (rib) ventilation of the lungs. This arrangement has been variously modified. They normally weigh 1,320 to 2,200 lbs. ), An egg-tooth on the snout to facilitate hatching. A form of asexual reproduction in which an unfertilized egg can develop into an adult organism is: hermaphrodism What replaces the membranes and nutrition source of amniotic eggs in organisms that exhibit live birth without amniotic eggs? But these strategies require very specific environments and/or make heavy demands of parents. This kind of This makes uric acid a more water-efficient way of excreting nitrogenous wastes, versus the synapsid method. NASA warns of 3 skyscraper-sized asteroids headed toward Earth this week. While the majority of eggs from the various species, ranging from reptiles, birds, fishes, and even insects, can be eaten safely, there are definitely some Does A Lizard Have An . Camels also. Filling up on water, when it's available, is very important for camels. Figure3. How Do You Get Rid Of Hiccups In 5 Seconds? The evolution of amniotic membranes meant that the embryos of amniotes were provided with their own aquatic environment, which led to less dependence on water for development and thus allowed the amniotes to branch out into drier environments. The eggs of these species are often laid in water, which protects them from being damaged or squished. The fluid inside the amnion, called amniotic fluid, acts as a cushion to help protect the developing embryo from physical danger. The amniotic egg is the key characteristic of amniotes. In sauropsids, there will usually be found faveolar lungs, which differ from the lungs of the synapsids. Amniotes have an amniotic egg, which typically has a hard covering to prevent desiccation. Find the answers to these questions and more as you read this lesson. The amnion is a fluid-filled sac where the embryo develops. Though many people think that camels only live in hot climates, they do well in temperature ranges from 20 degrees F (minus 29 degrees C) to 120 degrees F (49 degrees C). The early amniotes diverged into two main lines soon after the first amniotes arose. The marsupials represent a median between the monotremes and the placental mammals. These differences are reflected in the heart, lungs, and kidneys mainly. Jack laid by a relatively small animal, capable of finding moist microclimates. The overwhelming majority of animals are: Which of the following groups of animals does NOT have any members with amniotic eggs? The heart of synapsids is 4-chambered, with a well-defined partition between ventricles. Inside the egg are a series of fluid-filled membranes which permit the embryo semi truck accident, colorado today; pensacola, florida obituaries for the last 3 days; maximum height of retaining wall without permit; canary breeders association; Short bursts of 65 km (40 miles) per hour are possible, but camels are excellent plodders. A 115kg115 \mathrm{~kg}115kg total of copper and zinc ((( 4parts4\ \text{parts}4parts Zn\mathrm{Zn}Zn to 6parts6\ \text{parts}6parts Cu\mathrm{Cu}Cu ))) is mixed at 400C400^{\circ} \mathrm{C}400C. Why are sharks cartilaginous fish? Biologydictionary.net Editors. The amniotesreptiles, birds, and mammalsare distinguished from amphibians by their terrestrially adapted egg, which is protected by amniotic membranes. Primary membranes develop in the ovary and cover . The shells of bird eggs are composed of calcium carbonate and are hard, but fragile. The much different terrestrial environment is likely what drove the divisions between the two main groups of amniotes. The amniotes reptiles, birds, and mammalsare distinguished from amphibians by their terrestrially adapted egg, which is protected by amniotic membranes. Anapsids have no temporal fenestrae, synapsids have one, and diapsids have two. An aminiotic egg also is surrounded by amniotic fluid. Extra-embryonic membranes include an amnion, chorion, yolk sac, and an allantois. Anapsids include extinct organisms and may, based on anatomy, include turtles. "life." Most amphibians are four-legged vertebrates that do not have amniotic eggs. The first amniotes evolved from amphibian ancestors approximately 340 million years ago during the Carboniferous period. What was the very first egg in Adopt Me? The synapsid strategy for expelling waste, for instance, is typically all urea. While the inner amniotic membrane surrounds the embryo itself, the chorionsurrounds the embryo and yolk sac. Amniotic eggs are the evolutionary separation between amphibians and reptiles. You would begin the process of classifying this organism by placing it in phylum: Which of the following parasites is a roundworm(nematoda)? Amphibians are four-legged animals that dont have amniotic eggs. She has multiple health, safety and lifesaving certifications from Oklahoma State University. However, in recent years, DNA analysis confirmed that C. ferus was a separate species, according to the San Diego Zoo. Which of the following statements about the parts of an egg are false? Embryonic development is common to all animal and plant species when they undergo sexual reproduction. Amphibians lay eggs that must remain moist. How are camels adapted to life in the desert? Examples: turtles, snakes, lizards, dinosaurs, and crocodiles. Most mammals do not lay eggs (except for monotremes). It is across the placenta that Theplacenta,which transports nutrients and functions in gas exchange and waste management, is derived from the chorion and allantois. Major features of the amniotic egg: It is an air-breathing egg, in contrast to those of other vertebrates. buffer for environmental conditions. The shells of reptile eggs are leathery and require a moist environment. As you can see, the red line is in between amphibians and primates. Camels have long, slender legs, and can walk for up to 30 miles (50km) a day. The sauropsid amniotes include the reptiles and birds. the fetus, and wastes are removed. Amniotes are a clade of tetrapod vertebrates comprising the reptiles, birds, and mammals. Enable embryos to develop more quickly and to a greater extent prior to hatching. Because amphibian eggs don't have an amnion, the eggs would dry out if they were laid on the land, so amphibians lay their eggs in water. Amniotic eggs have a membrane called the amnion. No. how do you sleep with a holter heart monitor? Can gestational diabetes cause low amniotic fluid? Amniote embryos, whether laid as eggs or carried by the female, are protected and aided by several extensive membranes. Dromedaries have a soft wide-spreading pad for walking on sand; Bactrian camels have a firmer foot. Camel's ear s. We already mentioned that a camel's ears can be seen on the animal's head. The last name in that list, the mammals, may The teeth are used to hold prey in place until the frog . and pharyngeal gill slits at some time in their life cycle? This chart shows the evolution of amniotes. With the development of the amniotic egg, reptiles were able to lay their eggs on land. The camel's hump is like a storage container. Amniotes are vertebrate organisms which have a fetal tissue known as the amnion. See List of monotremes and marsupials, and for the clades and families, see Mammal classification. This type of egg also has membranes that develop outward from the embryo and are not part of it. Slightly over 500 million years old, the jellyfish population has actually increased in warmer waters. The lepidosaurs include modern lizards, snakes, and tuataras. Required fields are marked *. This improves the efficiency of oxygenating the blood, by insuring separate paths for blood going to and from the heart. Members of which phylum have a notochord, dorsal nerve cord,. In humans and other mammals, the chorion fuses with the lining of the mothers uterus to form an organ called the placenta. Below is an organism which could have been a common ancestor of modern amniotes. Camels live around 17 years. Eggs produced by reptiles that have a shell that keeps the eggs from drying out. Reptiles and mammals are members of a group called Amniota (the amniotes). Autor de la entrada Por ; the gambler ending explained Fecha de publicacin junio 4, 2021; spb hospitality headquarters en do camels have amniotic eggs en do camels have amniotic eggs After a gestation of 12 to 14 months, a mother camel will find a private spot to have her young. Instead, the embryo grows within the mothers body; however, even with this internal gestation, amniotic membranes are still present. The shell of the egg is either calcium-based or leathery. This domestic camel has one hump and is extinct in the wild. SURVEY . Conrad's pages on Amniota. Does the octopus have an amniotic egg? With the development of the amniotic egg, reptiles were able to lay their eggs on land. Features of roundworms (nematoda) include all of the following EXCEPT: What type of skeleton is found in annelids? In fact, wild camels are one of the most endangered large mammals. Single births are most common, but twin camel births have been . The yolk provides food for the growing embryo. 6-A Side Mini Football Format. Like the giraffe's, the camel's gait is a pace, with both legs on a side moving together. In addition to these membranes, the eggs of birds, reptiles, and a few mammals have shells. Egg covered in a mineralized shell - reptiles have leathery eggs; Removes nitrogenous wastes and protects the embryo from drying out. Which organism does not have a Vertebral . These membranes are the amnion, or protective layer, the top chorion layer, and the waste-absorbing allantois. Avoid predation on larvae by aquatic predators. All amniotes have an amniotic egg. What is the advantage of an amniotic egg? Their bodies rehydrate faster than any other mammal. Sauropsids typically excrete uric acid (the white paste in bird poop). They can easily carry an extra 200 pounds and can walk about 20 miles a day through the harsh desert climate. Fixed: Release in which this issue/RFE has been fixed.The release containing this fix may be available for download as an Early Access Release or a General Availability Release. Mammals give birth to live young because the development takes place internally. Amphibians such as frogs must deposit their eggs in a pond or other wet place. This is a parieasaur, a cow-sized organism from the Devonian period. Figure 1. chicken is a special kind of egg. Answer the question(s) below to see how well you understand the topics covered in the previous section. to survive: the amnion, allantois, yolk sac, and chorion. Like other amniotes, turtles breathe air and do not lay eggs underwater, although many species live in or around water. Do fish have amniotic eggs? Do all arthropods undergo protostome embryonic development? Amniotic eggs are laid by many different kinds of animals including reptiles, birds, and even some mammals. In this lesson, you'll learn interesting information about Bactrian camels. monotremes, still do. Does frog have teeth? All amniotes have three membranes surrounding the fetus of one offspring. While both the first and third are considered Bactrian camels due to having two humps instead of one, they are differentiated by their status as domesticated camels or wild camels. The box of a well-known breakfast cereal states that one ounce of the cereal contains 110 Calories (1 food Calorie = 4186 J). Biology Dictionary. At birth, offspring of these animals are the largest of all amniotes comparatively. The amnion is the layer closes to the embryo. Lacking a protected fluid-filled cavity requires the non-amniotic eggs of amphibians to remain in water. Bactrian camels have slightly longer ears, slightly under 6 inches (15cm) compared to Wild Bactrians, whose are 4 inches long (10cm). Camels are herbivores, though, so you won't find them eating meat. Although it is the first egg of the game, it can only be obtained through trading. embryo to the uterine wall of its mother. phoenix 2021 limited worth; najbolje srpske pesme svih vremena. egg is unique to the amniotes, a group that includes turtles, lizards, birds, dinosaurs, and mammals. The herds are led by a dominant male, while many of the other males form their own herd called a bachelor herd. "Amniotes." Egg Membrane egg membrane The layer of material that covers an animal egg cell. How quickly can amniotic fluid levels change? No, reptiles, mammals and birds have amniotic eggs because they lay their eggs on land. The egg cells of a chimpanzee are simply single-celled gametes. The white part of an egg is the amniotic fluid that the chick floats around in while protected inside the egg. 10 extant species in 4 families, all in the Americas, comprising anteaters and sloths. This. The allantois stores nitrogenous wastes produced by the embryo and also facilitates respiration. However, molecular studies indicate that turtles descended from a diapsid ancestor. Salamanders, frogs, and other living amphibians are in a quite derived lineage of tetrapods, called Lissamphibia. Members of the order Testudines have an anapsid-like skull with one opening. The embryo is The evolution of the extraembryonic membranes led to less dependence on water for development and thus allowed the amniotes to branch out into drier environments. Sauropsids include turtles, lizards, crocodiles, and birds. This is a defense tactic when the animals feel threatened. embryo matures. ", Biologydictionary.net Editors. The allantois stores nitrogenous waste and facilitates respiration. Answer (1 of 2): Embryos are surrounded by a set of fluid filled membranes called the amnion. Live Science is part of Future US Inc, an international media group and leading digital publisher. During its time in the game, it was sold to 100 Bucks and included the uncommon class Blue Dog. An amniotic egg is an egg that contains amniotic fluid and a yolk to nourish a developing organism. Use of cold for preservation of biological materials, avoidance of food spoilage and to manage a variety of medical conditions has been known for centuries. Alina's goal in life is to try as many experiences as possible. If each is suspended from the same length string, made into a pendulum, and then displaced through the same angle, determine whether they swing back and forth in unison. The article seeks to understand the cosmographies of the Viu Pura and the language of descent which defines the avatras, the descent of the heavenly Ganges (gagavatra) and the decline of the four ages (yugas) in terms of ideas associated with the projection of the sphere of the heavens on the equatorial plane. Sand up the nose can be a problem, but not for camels. Because reptiles, birds, and mammals all have amniotic eggs, they are called amniotes. fluid-filled chorion, which "breaks" as labor begins. Most reptiles reproduce sexually and have internal fertilization. Anamniote embryowas then enclosed in the amnion, which was in turn encased in an extra-embryonic coelom contained within the chorion. The two groups evolved around the same time, from a common ancestor which was likely not terrestrial. B. Reptiles do not have a larval stage, and their hatchlings are relatively mature. determine the health of the unborn child. (600 to 1,000 kg) when they are fully grown. Many mammals have a modified amniotic egg, which is an amniote. Instead, the embryo grows within the mother's body; however, even with this internal gestation, amniotic membranes are still present. The amniotic egg is the key characteristic of amniotes. Which animals have amniotic eggs? No matter the type, camels are usually found in the desert, prairie or steppe. The chorion and amnion develop from folds in the body wall, and the yolk sac and allantois are extensions of the midgut and hindgut respectively. It has been used as a working animal in North Africa and the Middle East for thousands of years. The large beasts make a variety of moans, groans and deep, throaty bellows. The amnion is a membrane derived from fetal tissue which surrounds and protects the fetus. There are other parts to the amniotic egg as well, which makes sense since the embryo needs more than to. Amniotic eggs have a membrane called the amnion. Yes, camels have embryonic development. The amnion can be found within the egg, as in lizards and birds, or the amnion can simply enclose the fetus within the uterus. Clade Dinosauria includes birds, which evolved from a branch of dinosaurs. In fact, the animals are throwing up the contents of their stomach along with spit. (Again independent?). become the umbilical cord, providing a connection through which food reaches Order Afrosoricida (tenrecs and golden moles), Order Perissodactyla (odd-toed ungulates), Mammal Species of the World: A Taxonomic and Geographic Reference, "A new species of elephant-shrew (Afrotheria: Macroselidea: Elephantulus) from South Africa", "Shrew's who: New mammal enters the book of life", https://en.wikipedia.org/w/index.php?title=List_of_placental_mammals&oldid=1135456693, This page was last edited on 24 January 2023, at 19:55. It also likely had an amnion, making it one of the first amniotes. Surrounding and protecting the embryo is the amnion, filled These are Camelus bactrianus, Camelus dromedarius, and Camelus ferus. There are two types of camels: dromedary camels, which have one hump, and Bactrian camels, which have two humps. an outer shell protects the whole egg, preventing drying When they eat and drink again the hump will refill with fat. Camels aren't picky about what they eat. Synapsids developed different lungs than the sauropsids. Turtle and Tuna. a relatively large egg, like that of oviparous caecilians (right). The allantois layer allows gases and waste to escape from the inner part of the egg. Here are the 10 oldest marine species you can still find under the surface today: Horseshoe crabs are one of the oldest species on earth, having been around in more or less the same form since the Ordovician period, some 445 million years ago. To explain for the fact that all vertebrate embryos have NGO pouches. The Yolk sack is actually the nouruishent for the chick while it is incubating inside the egg. PRIORITY CLAIM. Report an issue . onmyoji exchange center redemption code; working breed german shepherd puppies; cumberland county high school football; sjrwmd staff directory; A mammal (from Latin mamma 'breast') is a vertebrate animal of the class Mammalia (/ m m e l i. /).Mammals are characterized by the presence of milk-producing mammary glands for feeding their young, a neocortex region of the brain, fur or hair, and three middle ear bones.These characteristics distinguish them from reptiles and birds, which they diverged from in the Carboniferous . (2019, April 17). This substance precipitates out of the urine in the cloaca, where much of the water can be reabsorbed. This large reptile-looking organism likely had primitive lungs, heart, and kidneys. and a series of membranes that surround the developing chick. Nutrition is supplied to the developing embryo through the yolk sac. Ungraded . No related posts. The amnion forms a fluid-filled cavity that provides the embryo with its own internal aquatic environment. Your email address will not be published. When the egg is fertilized and implanted in, Your email address will not be published. The last name in that list, the mammals, may have surprised you since most mammals do not lay eggs, but the earliest mammals laid eggs, and a few, such as the To understand this, you must first understand.. Synapsids also include therapsids, which were mammal-like reptiles from which mammals evolved. while still permitting air to reach the embryo. Provisional Application Ser. What were the first eggs that could be laid on land? Dromedary camels (Camelus dromedarius) and the domestic Bactrian camel (Camelus bactrianus) were named in 1758 by Swedish zoologist Carl Linnaeus, who only knew of the domestic variety. Classification updated from Wilson and Reeder's Mammal Species of the World: A Taxonomic and Geographic Reference using the Planet' Mammifres website.[1]. Uterus . The amnion is a membrane derived from fetal tissue which surrounds and protects the fetus. 3. Their thick lips allow them to eat things that most other animals couldn't, such as thorny plants. Wed love your input. Turtles are classified as amniotes, along with other reptiles (including birds) and mammals. http://cnx.org/contents/185cbf87-c72e-48f5-b51e-f14f21b5eabd@10.8, Identify the classes of animals that are amniotes, Describe the main characteristics of amniotes. The archosaurs include modern crocodiles and alligators, and the extinct pterosaurs (winged lizard) and dinosaurs (terrible lizard). Animals are divided into different phyla on the basis of: Which of the following is not an advantage of a body cavity? Moreover, the structure and material of the egg aid the organism in gas and energy exchange. Camels are very social and like to greet each other by blowing in each other's faces. The second type of fish is the cartilaginous fishes. It is the marsupial and eutherian mammals which developed live birth. to and surrounds the embryo, doctors will sometimes examine the fluid to An The main difference between the two species is that the wild Bactrian has three more chromosome pairs than the domestic Bactrian. Wild Bactrian camels (Camelus ferus) were discovered in 1878 by Nikolai Prejevalsky, a Russian geographer who explored Mongolia and Tibet. The key features of an amniotic egg are shown. However, if we absolutely had to pick a side, based on the evolutionary evidence, were on Team Egg. In comparison to the head, the ear is smaller, usually being 4 inches long and 3 inches wide (10cm and 7cm). This earned these beasts of burden a nickname, "ships of the desert." If 2.0% of this energy could be converted by a weight lifter's body into work done in lifting a barbell, what is the heaviest barbell that could be lifted a distance of 2.1 m? How is frog, chick, and mouse embryonic development different? Scenarios of it origin are, necessarily, speculative, but the general consensus is that its precursor would have been: Claws or nails at the end of digits. Together with part of the chorion, these No, chimpanzees do not have amniotic eggs. In eutherian mammals (such as humans), these membranes include the amniotic . Anything below a red mark will not have the featured attribute, but everything after it will have it. other critters produce eggs from which their young hatch. Biologydictionary.net, April 17, 2019. https://biologydictionary.net/amniote/. Did you have an idea for improving this content? Animals have been laying eggs for millions of years; snails, fish, and many Amniote embryos, whether laid as eggs or carried by the female, are protected and aided by several extensive membranes. Do chimpanzees have amniotic eggs? Snails and slugs are in which mollusc group? kEY CONCEPt Reptiles, birds, and mammals are amniotes. Mammals also have an amnion and vestigial yolk sace and thus are also amniotes. Jane B. Reece, Lisa A. Urry, Michael L. Cain, Peter V Minorsky, Robert B Jackson, Steven A. Wasserman. No, chimpanzees do not have amniotic eggs. The amniotic egg, while metabolically expensive, can be laid and forgotten. As reptiles laying amniotic eggs transitioned from water to land they gave rise to other species. Divide the vertebrates into groups according whether they have an amniotic egg or not. The sauropsid amniotes also excrete waste differently than the synapsids. What Happens If You Only Eat Ramen Noodles? Tags: Topics: Question 5 . A marine animal with tube feet and radial symmetry would certainly be an Echinoderm? Feldhamer, G. A., Drickamer, L. C., Vessey, S. H., Merritt, J. F., & Krajewski, C. (2007). Avoid predation on larvae by aquatic predators. In eutherian mammals (such as humans), these membranes include the amniotic . Birds, reptiles, and mammals have amniotic eggs. (2009).

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