Are homologous pairs of chromosomes exact copies of each other?

Polar zones are cold and tend to be dry because of a pressure system of cold. low high

Explain why it’s important for scientists to study the sun. list at least two challenges researchers face when examining earth’s nearest star.

Astudent completed a lab report. which correctly describes the difference between the “question” and “hypothesis” sections of her report? “question” states what she is asking, and “hypothesis” states the result of her experiment. “question” states what she is asking, and “hypothesis” states what she thinks the answer to that question is in “if . . then . . because” format. “question” describes what she is trying to find out, and "hypothesis" states the procedures and methods of data collection. “question” describes what she is trying to find out, and “hypothesis” states any additional information or prior knowledge about the question.