Population Evolution

Pretend you have green bugs and brown bugs living on the lawn of your house. Pesticide that kills both green and brown bugs is sprayed on three sides of your house but the exterminator forgets to spray the pesticide on the fourth side of your house. Because of this the bug population is RANDOMLY changed and more brown bugs survive because more brown bugs are on the fourth side of your house. Which of the following vocabulary words describes this scenario?

• Natural Selection

• Gene Flow

• Genetic Drift: Founder Effect

• Genetic Drift: Bottleneck Effect

Tags

NGSS.MS-LS4-4

Drosophila permsimilis are reproductively active during the early morning while Drosophila pseudoobscura are reproductively active in early afternoon. What type of speciation resulted in the two species?

• post-zygotic barriers

• geographic isolation

• temporal isolation

• mechanical isolation

• behavioral isolation

The cladogram shown below describes the evolutionary relationship among several species, labeled A to F. The five dots represent derived characters. Of Species A to F, which have exactly three of the derived characters shown in the cladogram? Assume that none of the derived characters is lost in any of the lineages.

• A and B

• C and D

• A, B, C, and D

• C, D, E, and F

• E and F

Tags

NGSS.MS-LS4-1

NGSS.MS-LS4-2

the process by which one population evolves into two or more different species

• paleontologist

• speciation

• descendant species

• species

Tags

NGSS.MS-LS4-2

NGSS.MS-LS4-4

a more recent species that evolved from an ancestor population

• common ancestor population

• paleontologist

• species

• descendant species

Tags

NGSS.MS-LS4-4

The body structures for a population of chimpanzees were stable for a long time. Then, their body structures changed, making the chimpanzees stronger. Why did this happen?

• Organisms naturally become stronger over time.

• It is impossible to say without more information.

• The chimpanzee population wanted to be stronger.

• Their environment must have changed.

Tags

NGSS.MS-LS2-4

NGSS.MS-LS3-1

NGSS.MS-LS4-4

an older population from which two or more newer species descended

• descendant species

• paleontologist

• common ancestor population

• shared structure

Tags

NGSS.MS-LS4-2

On the cladogram, which organism is the closest relative of the human?

• Frog

• Hare

• Caiman

• Parrot

Tags

NGSS.MS-LS4-2

He developed the theory of evolution

• Linnaeus

• Lamarck

• Darwin

• Aristotle

Tags

NGSS.MS-LS4-2

NGSS.MS-LS4-4

_____ is referred to as survival of the fittest.

• natural selection

• mutating

• evolution

• adapting

Tags

NGSS.MS-LS4-4