Staar Evolution

What are homologous structures?

• different ATP synthesis mechanisms

• DNA similarities

• different bone structures

• similar bone structures in different species (evidence of common ancestor)

Tags

NGSS.MS-LS4-2

Which of the following can be concluded from the fossil record of horse relatives?

• horses cannot reproduce successfully with other mammals

• horses evolved to dominate the aquatic ecosystem

• evolution is a slow and gradual process that takes a long time

• evolution occurs extremely rapidly in all species

Tags

NGSS.MS-LS4-1

NGSS.MS-LS4-2

If a scientist is trying to prove two animals share a common ancestor, what is the best piece of evidence they could use?

• biological records showing they both had the same predator

• fossils being discovered in the same location

• fossils showing they both had teeth

• similar nitrogen base sequences of DNA in both animals

Tags

NGSS.MS-LS4-2

Two animals that are closely related would demonstrate which of the following?

• low amounts of their DNA sequence in common

• high amounts of their DNA sequence in common

• similar methods of flying

• the same type of habitat

Tags

NGSS.MS-LS4-2

What is the term used to describe the movement of alleles between populations?

• Genetic drift

• Gene flow

• Natural selection

• Mutation

Tags

NGSS.HS-LS4-2

Two organisms that are closely related would have

• very similar DNA sequence

• exactly the same DNA sequences

• no proteins in common

• completely different DNA sequence

Tags

NGSS.HS-LS3-1

Cows and horses both have hooves on their feet. Which of the following conclusions could be made?

• cows descended from a fish

• cows and horses can reproduce with each other successfully

• cows and horses are in the same species

• cows and horses share a common ancestor

Tags

NGSS.MS-LS4-2

What is an adaptation?

• a trait that you can acquire in your lifetime to help you survive

• an inherited trait that helps you survive and reproduce

• a trait that disappears when you are 15 years old

• When an animal changes and tries to adapt

Tags

NGSS.MS-LS4-4

Which of the following best describes evolution?

• spermocytes disfigure and destroy their spermotaphores

• individual animals change over time

• individual animals try really hard to grow wings and adapt

• populations change over time, not individuals

Tags

NGSS.MS-LS4-1

NGSS.MS-LS4-2

NGSS.MS-LS4-4

Which of the following will happen to the giraffe population in a few years?

• the genes for long necks will increase in frequency

• the genes for short necks will increase in frequency

• the short neck giraffes will start trying to grow longer necks

• the long neck genes will disappear from the population

Tags

NGSS.MS-LS4-4