The simplest nervous system occurs among
A. platyhelminthes.
B. cnidarians.
C. nematodes.
D. mollusks.
E. sponges.
Answer: B
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Activated G proteins ____
a. trigger endocytosis of the G-protein-coupled receptor b. bind to second messengers c. separate into two parts d. activate a kinase e. inhibit guanylyl cyclase
With ____, individual cells can be coaxed to divide and form embryos in a laboratory
a. in vitro fertilization b. sexual reproduction c. tissue culture propagation d. vegetative reproduction e. grafting
Explain why the seed plants would have an advantage over the seedless plants within a community.
What will be an ideal response?
In photosynthesis, the chemiosmotic production of ATP
A) requires oxygen. B) is similar to the production of ATP in mitochondria. C) is done by the Calvin cycle. D) is a result of the oxidation of glucose.