The epidermis of the skin . is made of dead cells
protects the body
is constantly being replaced
all of the above

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.

(99 points) be serious! how do farts work? how do you fart without it stinking? serious answers only

Natural selection changes allele frequencies because some survive and reproduce more successfully than others.