Which symbol represents a dominant allele?

t

Tt

T

tt

The rate at which molecules water and oxygen can enter a cell is determined by the-

Which is an example of a decomposer? a. bear b.algae c.grass d.bacteria d bacteria

Several bird species feed in a certain species of tree. each bird species feeds in a different part of the tree. which statement is true of these bird species? a. they have adapted to different niches due to competition b. they have a carnivorous relationship with the tree species. c. they have adapted to different niches due to predation d. they have a symbiotic relationship with the tree species.