YUH Flashcards
1
Q
Periodic Episodic and random
A
Periodic events happen at a regular frequency, episodic events are occasional and irregular, and random events have no regular frequency
2
Q
Bottleneck
A
A population bottleneck is an event that drastically reduces the size of a population. The bottleneck may be caused by various events, such as an environmental disaster, the hunting of a species to the point of extinction, or habitat destruction that results in the deaths of organisms.
3
Q
Characteristics of Biodiversity
A
the variety of all living things and their interactions. Biodiversity changes over time as extinction occurs and new species evolve. Scientists often speak of three levels of diversity: species, genetic, and ecosystem diversity.
