The ________ Concentration in the Air Over the Desert Differs

question 25

Multiple Choice

The ________ concentration in the air over the desert differs dramatically from that in the air in the tropical rainforest.

• A)N₂
• B)O₂
• C)CO₂
• D)H₂O

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Definitions:

Sex Hormones

Chemical substances produced by the body that regulate sexual development, behavior, and reproduction.

Reproduction

The biological process by which new individual organisms are produced from their parents.

Neurotransmitters

Chemicals released by neurons that transmit signals across a synapse from one neuron to another.

Behavior

The actions or reactions of an individual, usually in relation to the environment, which can be observed and measured.