An allele frequency has changed within a population. What term describes this occurrence?
a. microevolution
b. population evolution
c. population drift
d. macroevolution
e. allele driven evolution
a
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What will be an ideal response?
When blood glucose levels are low, the pancreas secretes ____
a. less glucagon and more insulin b. less insulin and more glucagon c. more glucagon and more insulin d. less glucagon and less insulin e. neither glucagon or insulin
Stomata _____
A) occur in all land plants and define them as a monophyletic group B) open to allow gas exchange and close to decrease water loss C) occur in all land plants and are the same as pores D) open to increase both water absorption and gas exchange
A rash characterized by macules which swell, fill with fluid and then pus, then rupture and become crusty lesions, is characteristic of
A) human herpes virus 2 primary infection. B) poxvirus infection. C) chickenpox virus reactivation. D) roseola virus. E) papillomavirus infection.