Electrons are shared in bonds called
a. covalent bonds.
b. ionic bonds.
c. polar bonds.
d. nonpolar bonds.
e. all of these except ionic bonds
E
Biology & Microbiology
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Which of these are the main structural components of biological membranes?
a. starches b. triglycerides c. proteins d. phospholipids e. steroids
Biology & Microbiology
Sister chromatids move to opposite poles of the cell during (Check all that apply.)
_____ anaphase I of meiosis _____ metaphase I of meiosis _____ anaphase II of meiosis _____ anaphase of mitosis
Biology & Microbiology
Which vitamin is produced in humans when exposed to sunlight?
a. A b. B1 c. C d. D e. folic acid
Biology & Microbiology
Pituitary dwarfism may be caused by reduced production of:
a. mineralocorticoid b. glucocorticoid c. calcitonin d. growth hormone e. the parathyroid hormone
Biology & Microbiology