Within Lakes, Eutrophication Is a Direct Result of Algae or Cyanobacteria

question 174

True/False

Within lakes, eutrophication is a direct result of algae or cyanobacteria at the water's surface depleting oxygen; during this process, oxygen levels at the bottom of lakes remain relatively constant.

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Definitions:

External Oblique

A muscle in the abdomen's outer layer that helps in rotating the trunk and pulling the chest downward.

Rectus Abdominis

A major muscle in the front of the abdomen that assists in breathing, movement, and posture.

Sternomastoid

Refers to the sternocleidomastoid muscle, which runs from the sternum and clavicle to the mastoid process of the skull, turning the head.

Sternohyoid

A muscle in the neck that depresses the hyoid bone and larynx during swallowing and speaking.