Granulosa cells surround a:
a. primary oocyte.
b. secondary oocyte.
c. primary spermatocyte.
d. secondary spermatocyte.
e. Sertoli cell.
a
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Imagine that you are managing a large game ranch. You know from historical accounts that a species of deer used to live there, but they have been extirpated
After doing some research to determine what might be an appropriately sized founding population, you reintroduce them. You then watch the population increase for several generations, and graph the number of individuals (vertical axis) against the number of generations (horizontal axis). With no natural predators impacting the population, the graph will likely appear as _____. A) a diagonal line, getting higher with each generation B) an "S" that ends with a vertical line C) an upside-down "U" D) a "J," increasing with each generation
Climate
a. changes with the seasons. b. refers to the atmospheric conditions at a particular place at a particular time. c. is determined by temperature and availability of water. d. is determined by the organisms living in a particular area. e. is the same throughout the globe.
Cladists feel that a cladogram is a hypothesis about the evolutionary history of a group. Using what you have learned about scientific hypotheses, support this view of a cladogram.
What will be an ideal response?
An atom has 20 electrons and 20 neutrons. What is the mass of this atom?
A. 20 B. 10 C. 40 D. 80