1. Before most cell divisions, most cells donot increase in size.

2. During cell division, one of the daughtercells gets all of the larger chromosomes, and the other daughter cell gets allof the smaller chromosomes.

3. The number of chromosomes in a cell is duplicatedbefore the beginning of mitosis.

4. Many species of bacteria have a single circularchromosome that consists of double stranded DNA.

5. Under ideal conditions, some bacteria canreproduce every 20 seconds.

Apopulation of black bears depends on salmon from a stream for food. if a drought causes the stream to run dry one year, how will this likely impact the black bear population?

Humans are believed to have evolved in coastal regions in east africa. the region had an abundant supply of fish for early humanoids to eat. when scientists analyze the fads gene they see an interesting pattern. people whose families have lived in this area of east africa for generation show a high level of diversity in alleles for the fads gene. conversely, people whose families had migrated inland a moderate distance from sources of fish showed a much lower diversity for fads gene alleles. additionally, the fads alleles found in people whose family has lived inland for generation are almost all gene alleles which produce fads proteins with a high level of function and activity. how do anthropologists explain this?

What does natural resource management aim at ?