Aprimary function of cholesterol in the plasma membranes of some animals is to
a) make the mem...
Biology, 09.11.2019 18:31 salazarx062
Aprimary function of cholesterol in the plasma membranes of some animals is to
a) make the membrane more rigid, allowing it to resist pressure from outside the cell.
b) facilitate the removal of hydrogen atoms from saturated phospholipids.
c) facilitate cell-cell interactions by binding to receptors on neighboring cells.
d) enable the membrane to stay fluid more easily when the temperature drops.
Answers: 2
Biology, 21.06.2019 19:00
Which conditions are necessary for natural selection to occur? select all of the answers that apply. a. inheritable adaptations vary among individuals. b. the population size is increasing. c. more individuals are born than can survive. d. fitness varies among individuals. e. the environment changes suddenly and drastically.
Answers: 1
Biology, 21.06.2019 19:50
Which statements correspond to cellular respiration? co2 diffuses passively into the cell. co2 diffuses passively out of the cell. co2 must be pumped out of the cell. o2 diffuses passively when produced inside the cell. o2 diffuses passively when converted to co2. o2 is pumped in and forces co2 out.
Answers: 3
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Which image shows labeled organelles that are present only in plant cells?
Answers: 1
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Which statement describes characteristics of planarians? a they live in oceans, are parasites, and reproduce only sexually. b they live in fresh water, are parasites, and reproduce only asexually. c they live in oceans, are free living, and reproduce sexually and asexually. d they live in fresh water, are free living, and reproduce sexually and asexually.
Answers: 3
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