This organelle is particularly important during cell division. It directs the formation of the mitotic spindle
A) mitochondrion B) centriole
C) endoplasmic reticulum D) microtubule
Answer: B
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Which of the following is an effect of stress on the immune system?
a) Increased activity of T lymphocytes b) Increased activity of B lymphocytes c) Activation of the immune system d) Inhibition of the immune system e) Increased production of antibodies
__________ is the reproductive strategy in which the entire development of the egg or ovum occurs externally
A) Oviparity B) Ovoviviparity C) Viviparity D) More than one of the above
What might happen if you did not get enough niacin in your diet?
a. glucose would not be able to be cleaved. b. available FAD would decrease. c. when the 3-carbon chain is oxidized in glycolysis, electrons would not be able to be captured. d. only fermentation would be possible e. all of these answers.
Select the correct activity occurring during anaphase.
A)Chromatid pairs are move towards opposite poles of the cell. B)Pairs of sister chromatids split from one another. C)Pairs of sister chromatids are clustered near the midline of the cell. D)Chromosomes move towards opposite poles of the cell.