Organisms living in the oceans are provided with a relatively constant environmental temperature. In order for plants and animals
to make the move to land, a high cellular was critical to help maintain a relatively constant internal temperature
LA)
pH
ion gradient
salt concentration
water concentration

Why is it important to reduce the number of chromosomes in half when forming gametes for sexual reproduction?

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.

Acell in the human nervous system whose primary function is to form myelin and the blood-brain barrier, respond to injury, remove debris, and enhance learning and memory is called a(n) cell.