Host specificity of Rhagoletis pomonella reduces gene flow between the apple and hawthorn races by 4% to 6% in each generation. This is an example of:

a. allopatric speciation. c. secondary contact.
b. assortative mating. d. resource competition.


B

Biology & Microbiology

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After eating a carbohydrate-rich meal, the mammalian pancreas increases its secretion of _____

A) ecdysteroid B) glucagon C) thyroxine D) oxytocin E) insulin

Biology & Microbiology

Bipolar cells carry signals from rods and cones to:

A. ganglion cells B. the retina C. the visual cortex of the brain D. horizontal cells

Biology & Microbiology

The more common types of cancers evade immune system destruction by becoming less detectable and by actively overcoming the immune system: (a) give an example of each, and (b) propose an experiment that could distinguish between these possibilities

What will be an ideal response?

Biology & Microbiology

In flowering plants, a ripened ovary is known as a ________

Fill in the blank(s) with correct word

Biology & Microbiology