What Sort of Human Activities Does Not Pose a Threat

question 67

Multiple Choice

What sort of human activities does not pose a threat to biodiversity?

• A) pollution
• B) the introduction of nonnative species of plants and animals
• C) the overuse of resources
• D) the destruction of natural habitats
• E) the grassroots organizing efforts of environmental movements

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Definitions:

Axon Terminal

The endpoint of an axon where neurotransmitters are released to communicate with other neurons or muscles.

Dendritic Spine

Protrusion that greatly increases the dendrite’s surface area; typical point of dendritic contact with the axons of other cells.

Postsynaptic Membrane

A specialized area of a neuron's cell membrane that receives neurotransmitters from another neuron at a synapse.

Electrical Synapses

Rapid, bidirectional connections between neurons mediated through gap junctions, allowing direct transmission of electrical signals.