What is true about gestation periods of endangered animals? a. endangered animals are unable to reproduce so they have no gestation period b. endangered animals typically have longer gestation periods c. some endangered animals have short gestation periods while others have longer gestation periods d. endangered animals typically have very short gestation periods

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.

Which particle controls what element an atom is?