What Are the Major Limiting Factors That Determine the Distribution

question 54

Multiple Choice

What are the major limiting factors that determine the distribution of organisms in aquatic ecosystems?

• A) Light and excess water
• B) Availability of water and appropriate temperatures
• C) Light and nutrients
• D) Appropriate temperatures and excess water
• E) Excess water and nutrients

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Definitions:

Purkinje Fibers

Specialized fibers in the heart that help regulate the heart's rhythm by conducting electrical impulses swiftly.

AV Bundle

The His bundle, a group of specialized cardiac muscle cells designed for conducting electricity, conveys the electrical signals from the AV node to the apex where the fascicular branches begin.

Cardiac Cycle

The sequence of events that occur in the heart during one complete heartbeat, encompassing both diastole and systole phases.

Left Atrium

One of the four chambers of the heart, which receives oxygenated blood from the lungs.