Natural selection, Atificial selection and evolution -Review

Who proposed Theory of evolution that says new species formed from changes in the old species

• Charles Darwin

• G. Mendel

• Rachael Carson

• E.O.Wilson

Tags

NGSS.MS-LS4-2

NGSS.MS-LS4-4

The factors affecting natural selection include the following except

• Variation

• Competition

• Changes in the environment

• Stable environment

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-4

What may lead to the extinction in the following

• The species produce more offsprings

• The species produce less number of offsprings with less variations

• The species produce more offsprings and other species also produce more offsprings

• The species produce more offsprings and other species reproduce slowly

Tags

NGSS.MS-LS3-2

NGSS.MS-LS4-4

How does variation affect survival of a species?

• If variation is more among species, they have better chance to survive

• If variation is more among species, they have less chance to survive

• If variation is less among species, they have better chance to survive

• If variation does not affect survival of a species

Tags

NGSS.MS-LS4-4

Which of the following adaptation help a prey escape from a predator if it depends on land dwelling preys?

• Prey can not flee fast

• Prey can't run

• Prey can flee fast

• None of the above

What happens to favorable traits over time ?

• increase

• decrease

• no change

Tags

NGSS.MS-LS4-4

What happens to unfavorable traits over time ?

• increase

• decrease

• no change

Tags

NGSS.MS-LS4-4

Which of the following is where environmental factors contribute evolution?

• Forest fire kills many in a species and some survive

• Farmer breeds a cow that gives high yield

• Scientist develop disease resistant crops

• A particular structure in some species of organism help them survive

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-4

NGSS.MS-LS4-4

What is no true about natural selection?

• It is a gradual process

• The fittest will survive in natural selection

• The organisms which can adapt to an environment survive better

• It is a fast process

Tags

NGSS.MS-LS4-4

What is natural selection?

• the process by which humans select the most desirable organisms in a population

• the changes in the characteristics within a population that lead to survival

• the changes that occur in an organism over its lifespan

• the changes that occur in an organism over its lifespan that does not affect its survival