Chapter 4: Notes

Question 1

Functional Diversity

Answer 1

The biological and chemical processes such as energy flow and matter recycling needed for the survival of species, communities, and ecosystems

Question 2

Ecological Diversity

Answer 2

The variety pf terrestrial and aquatic ecosystems found in an area or on the earth

Question 3

Genetic Diversity

Answer 3

The variety of genetic material within a species or a population

Question 4

Species Diversity

Answer 4

The number and abundance of species present in different ecosystems

Question 5

Natural Selection

Answer 5

Charles Darwin the described the theory of natural selection in his Origin of Species published in 1859

Darwin’s finches evolved to inhabitat different islands and different parts of each island all from a common ancestor on the mainland

Question 6

Resistance & Resilience

Answer 6

Ability to remain unchanged when being subjected to disturbance

Ability and rate of an ecosystem to recover from a disturbance and return to its pre-disturbed state

Question 7

What modern-day change, with anthropogenic causes, different from all the previous natural change?

Answer 7

Frequency and Intensity

Question 8

Native Species

Answer 8

Normally live and thrive in a particular ecosystem

Question 9

Nonnative Species

Answer 9

Species that migrate into or that are deliberately or accidentally introduced

Question 10

Invasive Species

Answer 10

When nonnative species compete with and reduce an ecosystem’s native species

Question 11

Indicator

Answer 11

Provide early warnings of changes in environmental conditions in an ecosystem
- Distributed widely and affected quickly by environmental changes

Question 12

Keystone

Answer 12

Effects the types and abundance of other species in an ecosystem that without it, the ecosystem would be dramatically different or might cease to exist