Genes can sometimes be exchanged between homologous chromosome pairs. this process is known as crossing-over.
which of the following statements is true of crossing-over?

Students in biology are studying the macromolecules of life. they used a calorimeter to determine the calories in various types of food. once the lab was completed, the students ate the left over food samples. monica commented that in just 6 or 7 "chews" of the saltine, it was gone; nothing but a sticky paste in her mouth. elaborate on what happened chemically while chewing the saltine. include the macromolecules present.

What best describes the dropping height of a ball that bounces back up to a height of 45 cm

Which of the following types of stars are dim but can have high surface temperatures? giants main sequence stars supergiants dwarfs