What is the light used for in Chlamydomonas?
a. as a source of information about the external environment
b. as a source of information about the internal environment
c. as a source of energy and as a source of information about the external environment
d. as a source of energy
Ans: c. as a source of energy and as a source of information about the external environment
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Gene therapy is used to treat many diseases
a. True b. False
The products of photosynthesis move from the leaf to other parts of the plant via
A. xylem. B. cortex. C. xylem and cortex. D. phloem. E. phloem and cortex.
What structure in E. coli delivers primase and accessory proteins to the oriC site to synthesize the primer needed for DNA replication?
What will be an ideal response?
What removes Ca2+ from the inside of an axon terminal of a chemical synapse after an electrical impulse has passed?
a. ion channels b. active transport pumps c. passive carrier proteins d. exocytosis e. simple diffusion through the plasma membrane