In Open- Water Marine Ecosystems, the Occupy the Same Trophic

question 18

Multiple Choice

In open- water marine ecosystems, the occupy the same trophic level as the giant sequoias (redwoods) in the forests of California.

• A) tiny, multicellular zooplankton ("animal drifters") that feed on phytoplankton
• B) fast- swimming, fish- eating tuna
• C) giant, squid- eating whales
• D) microscopic, single- celled algae (protists) called phytoplankton ("plant- like drifters")
• E) microscopic bacteria that decompose all the other organisms once they have died

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Definitions:

Fibrinogen

A blood plasma protein that's converted into fibrin by thrombin in the blood clotting process, essential for wound healing.

Fibrin

A protein that plays a crucial role in blood clotting, forming a fibrous mesh that impedes the flow of blood.

Tachycardia

A condition characterized by an abnormally rapid heart rate.

Systemic Circuit

The part of the cardiovascular system that carries oxygenated blood away from the heart to the body, and returns deoxygenated blood back to the heart.