What Is the Correct Sequence of Events That Has Led

question 21

Multiple Choice

What is the correct sequence of events that has led to the decimation of the kelp beds along the west coast of the U.S.?
A.Sea otters decline in numbers
B.Increase in orca predation on sea otters
C.Decline in the seals and sea otters
D.Over fishing of the herring and perch
E.Increase in the sea urchin population

• A)d - c - b - a - e
• B)d - c - b - e - a
• C)a - d - c - b - e
• D)d - b - c - a - e
• E)b - d - c - a - e

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Definitions:

Helper T Cells

A type of T cell in the immune system that assists other cells in responding to infected or cancerous cells by releasing cytokines.

Antibodies Production

The process by which the immune system creates antibodies to defend against pathogens or foreign substances that enter the body.

Interferon Levels

The concentration of interferons, which are proteins released by cells in response to the presence of pathogens, signaling other cells to heighten their defensive measures.

Viral Infection

The invasion and multiplication of virus particles within the body's cells, causing disease by damaging or killing cells, altering cellular function, or triggering immune responses.