HBio 3.3 Study Guide

Question 1

Ecological succession

Question 2

Primary succession

Question 3

Secondary succession

Question 4

Pioneer species

Question 5

Seral stages

Question 6

Climax community

Question 7

Species Richness

Question 8

Species evenness

Answer 8

Species evenness is a measure of how evenly distributed the individuals in a community are among the different species. It takes into account both species richness (the number of different species present) and the abundance of each species. A community with high species evenness has a similar number of individuals in each species, while a community with low species evenness has a few dominant species and many rare species.

Question 9

Genetic Diversity

Answer 9

Genetic diversity refers to the variety of genetic characteristics within a species or population. It is the result of genetic variation, which occurs through mutations, genetic recombination, and migration. Genetic diversity is important because it allows species to adapt to changing environments and helps maintain a healthy population. It also plays a crucial role in conservation efforts, as a lack of genetic diversity can increase the risk of extinction due to reduced ability to adapt to environmental changes or resist diseases.

Question 10

Ecological Diversity

Question 10

Keystone species

Question 10

Invasive Species