The ancestral lung of fish has developed into a unique structure used for another important function. What is this function?
a. respiration
b. buoyancy
c. lymph circulation
d. excretion of uric acid
e. excretion of urea
B
Biology & Microbiology
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Females who start smoking as teenagers are ________% more likely to develop breast cancer
a. 35 b. 70 c. 20 d. 100 e. 55
Biology & Microbiology
How does the male gametophyte travel to the female gametophyte of the conifers?
a. insects b. self-pollination c. birds d. wind
Biology & Microbiology
Construction of flagella and/or cilia is directed by the
A. basal body. B. axoneme. C. tubulin. D. centriole.
Biology & Microbiology
Which of the following is a distinguishing feature of monotremes?
a. laying leathery eggs b. keeping their young in a pouch c. having stereoscopic vision d. having two sets of teeth
Biology & Microbiology