It Is Speculated That the Reason Users of PCP Often

question 78

Multiple Choice

It is speculated that the reason users of PCP often experience "flashbacks" is that PCP is

• A)stored in the brain.
• B)decomposed slowly.
• C)fat soluble.
• D)water soluble.

Explain the significance of keystone species beyond their abundance.

Recognize various ecological effects such as the edge effect and the role of dominant and keystone species in ecosystems.

Understand adaptations in species for defense against predators and the significance of coloration.

Describe the relationship between species richness and community stability and the role of research in elucidating this relationship.

---

Definitions:

Neurons

Specialized cells within the nervous system that transmit information to other nerve cells, muscle, or gland cells.

Junction

A point where two or more elements meet or connect, especially in the context of biological structures.

Synaptic Vesicles

Small sacs within presynaptic nerve terminals that contain neurotransmitters, critical for transmission of nerve impulses.

Exocytosis

The process by which a cell transports secretory products through the cytoplasm to the plasma membrane and then into the extracellular environment.