The function of the amphibian larval stage is to allowa. extended development of the muscular-skeletal system.b. food gathering over an extended period.c. escape from predation.d. prevention of metamorphosis.
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The function of the amphibian larval stage is to allow
a. extended development of the muscular-skeletal system.
b. food gathering over an extended period.
c. escape from predation.
d. prevention of metamorphosis.
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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.Mammals 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.Unlike bony fishes, amphibians havea. ears. b. jaws. c. a circulatory system.d. a heart.
- Reptiles show many adaptations for a completely terrestrial lifecycle. The deputation that first occurred in the reptiles is:  A. Lungs B. Endothermic C. The water proof eggshell D. Producing milk for young Segmentation, first seen in annelids, allows evolutionary advantages bya. allowing more fluid movement for less energy expense.b. specialization of segments to carry out different functions.c. allowing coelom development.d. concentrating sensory and nervous tissues and organs in the direction of motion.Which of the following statements is correct for all amniotes? A. They have internal fertilization, three embryonic membraes, are independent of water for reprodction B. They have external fertilization if they live in water, have alantoic membranes to carry oxygenated blood to the embryo, and lack a shell on their eggs. C. They lay eggs covered with a shell, are viviporous and have a marsupium D. They have an embryonic chorionic membrane that becomes part of the placenta, has cells with Golgi bodies,and a yolk sac E. They have three embryonic membranes, have notochords, and are ovoviviparous.
- Figure 15.33 Which of the following statements about common features of chordates is true?a. The dorsal hollow nerve cord is part of the chordate central nervous system.b. In vertebrate fishes, the pharyngeal slits become the gills.c. Humans are not chordates because humans do not have a tail.d. Vertebrates do not have a notochord at any point in their development; instead, they have a vertebral column.a rabbit is a tetrapod. It has hair, a large brain, and acute vision and sense of smell. It nurses its young with milk produced in mammary glands and is endothermic. Rabbits use internal fertilization and give birth to live young. Which class of vertebrates do rabbits belong to? a. Amphibia b. Chondrichthyes c. Actinopterygii d. MammaliaMonotremes are unique mammals because they: A. posses hair B. give birth to live young C. secret milk in a pouch D. lay eggs
- Which of the following is a correct way to distinguish reptiles from amphibians? a. Reptiles have scales & amphibians don't b. Amphibians lay eggs and reptiles don't c. Reptiles sometimes don't have legs, but amphibians always have them. d. Reptiles go through metamorphosis and amphibians don't e. Reptiles lay eggs and amphibians don'tThe reason that birds and crocodilians both build nests might be because they a. are both warm-blooded. b. both eat fish. c. both inherited the trait from a common ancestor. d. both are ectothermic.Which of the following is a derived trait of chordates? A. Endoskeleton B. Dorsal nerve cord C. Skull and vertebrae D. Muscular post-anal tail E. None of the above