____ describes the number of individuals in a species that survive from one life cycle stage to the next
Fill in the blank with the appropriate word.
Survivorship
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When threshold potential is reached, which of the following occurs?
a. The activation gates of Na+ channels close. b. The inactivation gates of Na+ channels close. c. The activation gates of K+ channels close. d. The inactivation gates of Na+ channels close. e. Na+/K+ active transport pumps are activated.
Each of the following compounds is a source of electrons for anoxygenic photosynthesis except
A) S2- (sulfide). B) S2O32- (thiosulfate). C) H2O (water). D) succinate. E) All of the above are sources of electrons for anoxygenic photosynthesis.
Explain the relationship between the terms virus particle, virion, and virus genome
What will be an ideal response?
Chronic myelogenous leukemia (CML) is caused when a segment of chromosome 9 and a segment of chromosome 22 both break off and switch places. How is this mutation classified?
A. deletion B. duplication C. inversion D. translocation E. reciprocal translocation