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The breakdown of fats within the body is useful for .
a. protein synthesis
b. building amino acid chains
c. carbohydrate breakdown
d. building cell membranes
e. building nucleotides

Why does meiosis produce cells with half the chromosomes? o a. most of the chromosomes are not necessary to keep an organism alive. b. a gamete needs only half the number of chromosomes because two gametes join together. o c. it makes the gametes easier to move around in the organism. o d. it is faster to produce gametes with fewer chromosomes.

What environmental cues and landmarks do the geese use to determine the timing and direction of their migration over the mountains? how do they find their way?

What type of pollution does household garbage cause