Which of the following best describes the use of population models in biology? (SC.7.N.3.1 O They are generally easy to construct.
O They can represent reality precisely.
They are used when no observations have been made.
O They can help predict outcomes
(25 points)

2. given that most biochemical (other than coal) rocks react with hydrochloric acid, what does that tell you about organisms?

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.

The cluster of developing cells from conception until birth is called an