A characteristic of land plants is the presence of small openings, found mostly on the underside of leaves, that allow gas exchange between the plant and its environment. These structures are called
A. stomata.
B. chloroplasts.
C. thallus.
D. rhizoids.
E. cuticles.
Answer: A
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In multicellular species, fungal spores germinate and give rise to filaments called __________. Fill in the blank(s) with the appropriate word(s)
An instantaneous automatic response to a stimulus is a(n)
A. fixed action pattern. B. taxis. C. imprinting. D. learned behavior. E. reflex.
Which of the following is characteristic of prokaryotic genomes but not eukaryotic genomes?
A. histones B. circular chromosomes C. linear chromosomes D. enclosed in a nuclear membrane E. typically consist of a few to several chromosomes