The bottleneck effect is the loss of genetic diversity that occurs when
A. many organisms have successful survival rates.
B. many members of a population die.
C. large groups of individuals leave their home population and establish new settlements.
D. small groups of individuals leave their home population and establish new settlements.
E. many members of a population reproduce.
B. many members of a population die.
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The ________ is the innermost layer of the eye that is lined with almost a quarter-billion photoreceptors
Fill in the blank(s) with correct word
Your research project involves characterizing the expression pattern of a nuclear pore protein. After using immunohistochemistry to fluorescently label the protein, you decide that you would like to capture the data as a 3-D image. Which microscope should you use?
A. scanning electron microscope B. phase-contrast microscope C. fluorescence microscope D. confocal microscope
Which of the following glands is exclusively found in males?
a) adrenal b) parathyroid c) Cowper's d) pituitary
The ________ are the most abundant type of seedless vascular plant.
Fill in the blank(s) with the appropriate word(s).