According to Most Conservation Biologists, the Single Greatest Threat to Global

question 17

Multiple Choice

According to most conservation biologists, the single greatest threat to global biodiversity is

• A) chemical pollution of water and air.
• B) stratospheric ozone depletion.
• C) overexploitation of certain species.
• D) alteration or destruction of the physical habitat.
• E) global climate change resulting from a variety of human activities.

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Definitions:

Adrenal Cortex

The outer portion of the adrenal glands that produces steroid hormones such as cortisol, aldosterone, and androgens.

Parasympathetic Ganglia

Clusters of nerve cell bodies in the parasympathetic division of the autonomic nervous system that transmit signals to various body organs.

Receptor Molecules

Proteins located on the cell surface or within cells that bind to specific molecules like hormones, antigens, or neurotransmitters, triggering a specific cellular response.

Muscarinic

Referring to a class of cholinergic receptors found in various body tissues, and responding to the neurotransmitter acetylcholine.