Many Ecosystems Are Damaged by Attempts to Make a Quick

question 23

Multiple Choice

Many ecosystems are damaged by attempts to make a quick profit because __________.

• A)the value of ecosystem services is underappreciated
• B)ecosystem services require sustained human development
• C)the prices of most natural goods continue to fall
• D)natural services are valued more than natural goods

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Definitions:

Phagocytes

Cells that protect the body by ingesting harmful foreign particles, bacteria, and dead or dying cells, essential for the immune response.

IgG

Immunoglobulin G, the most common type of antibody found in blood and extracellular fluid, allowing it to provide immune system protection against bacterial and viral infections.

IgM

Immunoglobulin M, a type of antibody that is produced by B cells and is the first antibody to respond during an immune response.

Complement System

A part of the immune system consisting of a series of small proteins that enhance (complement) the ability to ward off and destroy pathogens through a process known as complement activation.