Which substance is absorbed in large quantities by the rain forests?

carbon dioxide

acid rain

oxygen

ozone

Peristalsis is characteristic of skeletal muscle involving a contraction and relaxation of opposing layers of smooth muscle cells. (A) True (B) False

To ensure that living organisms have the elements that they need, the elements move in which type of cycle]

What conditions lead to the start of primary succession?

Stoichiometry is based on the law of conservation of mass a. True b. False

Which theory proposes that all matter in the universe simply exploded outward after it was compressed into a small space under tremendous pressure

Games like tag and hide and seek are examples of: A: Constructive play B: Fantasy play C: Creative play D: Motor play E: Parallel play

Explain in a complete sentence why it is important for scientists to share information with one another.

The DNA message depends on the order of the a. nitrogen bases. b. acids. c. sugars. d. genes.

How to tell if a fossil is older

Males have only one copy of each type of sex chromosome; therefore, all sex-linked genes are expressed, even recessive alleles. Based on this information, which statement is true? A.