The amount of matter that cycles through a food web

A) stays constant.

B) continually increases.

C) continually decreases.

D) changes unpredictably.

The smaller number of species on the island of Saba compared to the larger number of species on the island of Jamaica is an example of the

The relationship between the frog and the insects is a relationship. If the number of frogs in the ecosystem decreased because of human activity, there's a possibility that.

Question 7 The speed of an object is: O a) The direction in which the object moves. O b) The distance the object travels per unit of time. O c) The rate at which velocity changes. O d) None of the above.

What is the general process scientists use to gather information and answer questions

Stem cells in human bone marrow divide and differentiate to form various A) neurons. B) hormones. C) osteocytes. D) blood cells.

In water, hydrogen bonds hold together

The wall of the alveolus (air sac) in the lung is composed of which type of epithelium? hints the wall of the alveolus (air sac) in the lung is composed of which type of epithelium?

How is the rainforest in nicaragua ranked in the americas?

Which blood type is inherited by codominance?

Solar flares may be used to predict what?