Biology and Environmental Science

Question 1

Extinction Potential

Answer 1

A species chance of going extinct

Question 2

Intrinsic rate of increase for a population

Answer 2

the rate a population would grow in the absence of limits or constraints

Question 3

Allopatric Speciation

Answer 3

occurs when individuals become geographically isolated and evolve into a distinctly different species.

Question 4

Parapatric Speciation

Answer 4

the origination of a species immediately adjacent to the ancestral species’ range

Question 5

Sympatric Speciation

Answer 5

the new species occupying the same area without interbreeding with the ancestral species.

Question 6

Climax of a population

Answer 6

a stable, balanced ecological community of plants and animals.

Question 7

The scientific work of Gregor Mandel

Answer 7

observed variations across several generations of pea plants. He formulated the law of independent assortment and law of segregation

Question 8

Scientific contribution of Theodosius Dobzansky and Ernst Mayr

Answer 8

introduced the modern synthesis that shifted focus to populations, genetics, and phenotypes

key figures in the development of the “Modern Synthesis” of evolutionary theory, primarily contributing by integrating genetics with natural selection and defining the concept of a species through the “biological species concept,” where a species is defined as a group of interbreeding populations that are reproductively isolated from other groups