According to the figure, what is occurring during day 2?  





A.  ovulation

B.  release of corpus luteum

C.  menstruation

D.  luteal regression

E.  copulation


C.  menstruation

Biology & Microbiology

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What motor proteins are responsible for the activity of the contractile ring during cytokinesis in animal cells?

A. kinesin B. myosin C. dynein D. dynamin

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________ enzymes catalyze the hydrolysis of beta (1-4) linkages between successive D-glucose residues of cellulose.

Fill in the blank(s) with the appropriate word(s).

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The only way that cells can produce ATP in the absence of oxygen is through the process of ________

Fill in the blank(s) with correct word

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Major evolutionary changes have resulted in anatomical and physiological adaptations that optimize the rate of gas exchange in animals by each of these factors except ________.

A. increasing the diffusion constant for each gas B. decreasing the distance for diffusion C. increasing the surface area for diffusion D. increasing the concentration difference driving diffusion

Biology & Microbiology