What is the function of alveolar pores?
A) speed the rate of diffusion
B) equalize pressure in the lungs
C) allow for exhalation of H2O formed during cellular respiration
D) allow for nutrients to reach the alveolar cells
E) a portal for diapedesis
Answer: B) equalize pressure in the lungs
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A physiologist is a biologist who studies the ________
A) structure of living things B) structure of body parts C) evolution of animals D) function of body parts
When breeding cats, what cellular process must take place in both males and females to
ensure the correct number of chromosomes in the offspring?
a. genetic variation b. meiosis c. fertilization d. gene flow
John was planning to ask Susan to marry him. When he saw Susan kissing another man at a party, he was quite upset. In this situation, John's seeing Susan kissing another man is _____, and it illustrates _____.
A. a stressor; distress B. eustress; a stressor C. distress; a stressor D. astressor; eustress
Scientists used DNA similarity to track down the Golden State Killer by comparing crime scene DNA with public databases. We also see that closely related species are more similar in their DNA than distantly related species. Which evolutionary pattern is best described here?
A. convergent evolution B. anatomical homology C. fossil record D. molecular homology