Chapter 15,16,17-1,&17-4: Evolution

Question 1

What is evolution?

Answer 1

Change over time

Question 2

What is natural selection?

Answer 2

Changes in the inherited characteristics of a population

Question 3

What is another term for natural selection?

Answer 3

Survival of the fittest

Question 4

Natural selection favor homozygous or heterozygous alleles?

Answer 4

Heterozygous

Question 5

What are the two factors that increase genetic variation?

Answer 5

Mutations and gene shuffling

Question 6

Why does genetic variation increase the survival of species?

Answer 6

There is a variation among the species

Question 7

Natural selection acts on ______________?

Answer 7

Phenotype

Question 8

What are fossils?

Answer 8

The bones or imprints of a decomposed organisms

Question 9

What is speciation?

Answer 9

The formation of a new species and distinct species in the course of evolution

Question 10

What factors are involved in the formation of a new species?

Answer 10

Reproductive isolation

Question 11

What is reproductive isolation?

Answer 11

Members of two populations cannot inbreed and produce offspring

Question 12

What three factors lead reproductive isolation?

Answer 12

Behavioral
Geographic
And temporal isolation

Question 13

A small portion of population that is geographically isolated from the rest of the population runs the risk of decreased ______________?

Answer 13

Genetic drift

Question 14

What are the five evidences of evolution?

Answer 14

1. Fossils
2. DNA
3. Vestigel
4. Homologous structure
5. Embryo