An aponeurosis is a: a. cord-like structure that attaches the end of a muscle to a bone. b. sheet of connective tissue that attaches a muscle to another muscle or bone. c. disk of cartilage that is a shock absorber. d. cord of tissue that joins one bone to another.

B. sheet of connective tissue that attaches a muscle to another muscle or bone.

Explanation:

The aponeurosis are mainly made of collagen fibers and works as an  insertion to some skeletal muscles. The aponeurosis fibers can connects muscles to the bone or with another muscles connecting the aponeurosis fibers among themselves.

i'm thinking (a) to keep sand in place; ////////////

explanation: a sand fence or sandbreak, like a snow fence, is used to force windblown, drifting sand to accumulate in a desired place. sand fences are employed to control erosion, sand dune stabilization, keep sand off roadways, and to recruit new material in desert areas.

the principle of segregation describes how pairs of gene variants are separated into reproductive cells. from his data, mendel formulated the principle of segregation. we now know that the segregation of genes occurs during meiosis in eukaryotes, which is a process that produces reproductive cells called gametes.