Agene map shows
a. the number of possible alleles for a gene.
b. the relative locations of genes on a chromosome.
c. where chromosomes are in a cell.
d. how crossing-over occurs.

What kind of action is a cause of air pollution

Choose the molecule that is described by each phrase. energy used during long activities:

Elephants in the savanna regions of africa dig holes in dried up river beds to reach water lying just below the surface. these holes provide drinking water for other animals as well. so, without the elephants, many animals might otherwise die from lack of water during the dry season. the location in which the elephants live is an example of a/n and the role they play in creating water holes is an example of a a) ecosystem; habitat b) community; niche c) habitat; niche d) niche; habitat