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

question 41

Multiple Choice

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

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

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Definitions:

Depression

A mental health disorder marked by persistent feelings of sadness, hopelessness, and a lack of interest or pleasure in activities.

Biochemistry

The branch of science concerned with the chemical processes and substances that occur within living organisms.

Nervous System

The part of an organism that gathers, processes, and responds to sensory information, consisting of the brain, spinal cord, and peripheral nerves.

MRI

Magnetic Resonance Imaging, a medical imaging technique used to form pictures of the anatomy and the physiological processes of the body.