A grassland has 100 gophers in it. Over the course of a year 65 Emigrate, 25 Immigrate, 10 die, and 15 are born. Give the change in population size, and the new total.

What happens when the cell copies its chromosomes

Based on the law of dominance, we would expect percent of the offspring from this cross to have large teeth.

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.