Why Does the Zebra Mussel Cause More Trouble in North

question 77

Multiple Choice

Why does the zebra mussel cause more trouble in North America than in its original home?

• A) In North America, the zebra mussel has a more suitable climate.
• B) In North America, the zebra mussel has a better food supply.
• C) In its native Eurasia, the zebra mussel has many predators that keep its population in check.
• D) In North America, people cultivate zebra mussels and protect them from predators.

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Definitions:

Phagocytes

Cells responsible for defending the body by absorbing dangerous foreign materials, bacteria, and cells that are either dead or in the process of dying.

Monocytes

A type of white blood cell that plays a key role in the immune response, capable of differentiating into macrophages and dendritic cells.

Macrophages

A type of white blood cell part of the immune system, involved in the detection, phagocytosis, and destruction of bacteria and other harmful organisms.

Tumor Necrosis Factor (TNF)

A cell signaling protein (cytokine) involved in systemic inflammation and is part of the immune system's response to infections and diseases.