Reptiles are much more extensively adapted to life on land than amphibians because reptiles a. have a complete digestive tract. b. lay eggs that are enclosed in shells. c. are endothermic. d. go through a larval stage.
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Reptiles are much more extensively adapted to life on land than amphibians because reptiles a. have a complete digestive tract. b. lay eggs that are enclosed in shells. c. are endothermic. d. go through a larval stage.
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- Reptiles, including birds, belong to one major lineage of amniotes, and________ belong to another. a. sharks c. mammals b. frogs and toads d. salamandersThe closest modern relatives of birds are ________. a. crocodilians b. mammals c. turtles d. lizardsA divergence from ________ gave rise to tetrapods. a. ray-finned fishes c. cartilaginous fishes b. lizards d. lobe-finned fishes
- Which of the following is NOT a characteristic of all reptiles? A Use lungs and skin for respiration B Lay eggs on land C Their body is covered with scales made of keratin D Their skin secretes a mucous to keep it moistThe only living group of mammals that lay eggs rather than give birth to live young are called: A) marsupials B) monotremes C) placentals D) eutheriansMammals are distinguished from other animals based ona. size and hair type.b. mode of reproduction.c. number of limbs and method of caring for young.d. number of mammary glands and number of offspring.
- Vertebrates and tunicates share(A) jaws adapted for feeding.(B) a high degree of cephalization.(C) an endoskeleton that includes a skull.(D) a notochord and a dorsal, hollow nerve cordWhich adaptation makes it possible for an animal to live its whole life cycle on land? Group of answer choices A. jaws B. mammary glands C. amniotic eggs D. bony skeletonsReptiles faced a number of challenges as they moved farther away from sources of water. (Similarly, to amphibians).A.) what were some of the challenges reptiles faced?B.) and how did they overcome those challenges? (Evolutionary, adaptation...)
- Characteristics that evolved in birds to allow for flight includea. reptilian-like scales on the legs.b. a hard-shelled amniotic egg.c. internal fertilization.d. thin, hollow bones in the skeleton.What is one trait related to locomotion that Au. sediba shares with modern humans? A. Angled femurs B. Longer arms and shorter legs C. Long and thin pelvis D. A divergent big toe (big toe sticks out)Why was the evolution of the pulmonary veins important for amphibians? a. To move oxygen to and from the lungs b. To increase the metabolic rate c. For increased blood circulation to the brain d. None of the choices are correct.