A cell membrane is a lipid _________ because the phospholipids line up in TWO ROWS to try and keep their ______________ tails away from water.
Fill in the blank(s) with the appropriate word(s).
Ans: bilayer; hydrophobic
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FSH in males targets ________ cells, which indirectly enhances sperm formation
Fill in the blank(s) with correct word
Which of the following is the ultimate source of chemical energy for all living organisms?
a. glucose b. photosynthesis c. GTP d. cellular respiration
The negative logarithm of the hydrogen ion concentration in the solution is referred to as
A. electronegativity. B. specific heat. C. pH. D. atomic mass. E. OH- concentration.
Sexual reproduction is important to the survival of a species in a changing environment because
a)sexual reproduction requires less overall energy expenditure than asexual reproduction. b)sexual reproduction produces genetically different individuals. c)sexual reproduction requires only one individual. d)sexual reproduction produces genetically-identical individuals. e)All answers are correct.