Which of the following transport mechanisms requires energy?
Ans: Antiports
Biology & Microbiology
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Pinnipeds have to come ashore to give birth
Indicate whether the statement is true or false
Biology & Microbiology
Which cells are primarily affected by multiple sclerosis?
Biology & Microbiology
What would be the ultimate effect on an ecosystem if decomposers were eliminated?
a. The rate of photosynthesis would increase. b. The consumers would have to eat twice as much. c. Energy flow between producers and consumers would increase. d. All life would eventually cease as nutrients would no longer be available. e. Producers would outgrow consumers due to the excess of carbon dioxide.
Biology & Microbiology
A membrane-bound sac used to transport substances into and out of cells is a
A.) pump B.) macrophage C.) lysosome D.) vesicle
Biology & Microbiology