Which of the Following Is (Are) Found in Many Veins

question 31

Multiple Choice

Which of the following is (are) found in many veins that help direct blood flow in one direction only: toward the heart?

• A) valves
• B) lymph nodes
• C) myocardium
• D) pericardium

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Definitions:

Bilingualism

The ability to use two languages effectively, often with similar proficiency.

Classical Conditioning

An instructional approach in which the frequent pairing of two stimuli leads to a reaction that, although initially prompted by the second stimulus, is subsequently prompted by the first stimulus.

Evolutionary Advantages

Traits or behaviors that increase an organism's chances of survival and reproduction, shaped by natural selection.

Reinforcement

In behavioral psychology, a consequence applied that strengthens an organism's future behavior whenever that behavior is preceded by a specific antecedent stimulus.