Four different mammals all live among oak and maple trees in a forest. They don't seem to compete for the same foods or nesting places. Which of the following is a likely explanation for this lack of competition? Captionless Image There is a shortage of space. Their small size is a limiting factor that reduces competition among them. There is no shortage of food. The four species occupy different niches or roles in the environment.

Viruses use the host's machinery to make copies of themselves. however, some human viruses require a type of replication that humans do not normally have. for example, humans normally do not have the ability to convert rna into dna. how can these types of viruses infect humans, when human cells cannot perform a particular role that the virus requires? a) the virus causes mutations in the human cells, resulting in the formation of new enzymes that are capable of performing these roles.b) the viral genome codes for specialized enzymes not in the host.c) the virus infects only those cells and species that can perform all the replication roles necessary.d) viruses can stay in a quiescent state until the host cell evolves this ability.

Achemical substance that people of any age may not lawfully manufacture, possess, buy, or sell is known as a(n) a. over the counter drug b. prescription drug c. medicine d. illegal drug

The french parenting style is somewhat different. they believe in maintaining , which means a framework or boundary. parents draw firm boundaries for children, and they expect children to abide by their rules and regulations. at the same time, they offer some degree of to their children.