A tunicate is a(n)
A) jawless fish.
B) cartilaginous fish.
C) invertebrate chordate.
D) bony fish.
E) amphibian.
C
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Molecules that consist of two or more different elements in proportions that do not vary are called ________
a. elements b. compounds c. radioisotopes d. ions
Which is a disadvantage of an exoskeleton?
a. It must be shed (and a new one made) for its owner to grow. b. It does not provide as efficient a muscle anchorage as an endoskeleton. c. It allows for excess water loss. d. It is not flexible enough to allow a full range of movement. e. It is not able to absorb pigments for sufficient camouflage.
The hominoids and the __________ share a common ancestor that diverged to form these two groups
a. lemurs b. tarsiers c. New World monkeys d. orangutans e. Old World monkeys
What is the term for the volume of air that reaches the respiratory zone each minute?
A) minute ventilation B) tidal volume C) pulmonary ventilation D) total lung capacity E) alveolar ventilation