Which of the following is true?

a. soil is not an important part of an ecosystem.
b. soil plays an important role in many ecosystems.
c. soil’s only role is to hold plants in place.

Select the correct answer. which statement applies only to the axial skeleton, not the appendicular skeleton? a. it contains a pivot joint. b. it has muscles attached that work in pairs. c. it contains red bone marrow. d. it possesses fossa for bone articulation. e. it protects the heart and lungs.

Which of the following is one way in which organisms such as clown fish and sea turtles are able to overcome the many dangers that their offspring encounter and ensure that their species population numbers stay relatively steady

The word belongs in a different group than all of the other words in the list.