Prior to the 1940s, Many Biologists Believed ____, Which Is

question 25

Multiple Choice

Prior to the 1940s, many biologists believed ____, which is composed of 20 different types of ____, was most likely the genetic material.

• A) protein; amino acids
• B) DNA; amino acids
• C) protein; nucleotides
• D) DNA; nucleotides
• E) RNA; nucleotides

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Definitions:

Perception

The process by which individuals interpret and organize sensory information to understand the environment and make decisions.

Stimulants

Psychoactive drugs such as cocaine, amphetamines, nicotine, and caffeine that tend to elevate mood, arouse action, reduce feelings of fatigue, and decrease appetite.

Marijuana

A drug derived from the resin of the cannabis sativa plant. The effects of marijuana abuse include memory impairment, altered thought process, feelings of relaxation and euphoria, impaired coordination, and increased appetite.

Amphetamines

A class of stimulant drugs that increase activity in the brain and have effects such as increased energy and alertness.