Natural Selection

The theory of evolution by natural selection means that what is changing over time?

• The inherited traits of a population.
• The acquired traits of a population.
• Hair color and eye color
• Attractive features.

Why are advantageous traits more likely to be passed onto offspring?

• Because they are more likely to survive and reproduce.
• Because they come from dominant alleles.
• Because they come from recessive alleles.
• Because the trait is an acquired phenotype.

Where the better adapted organisms survive to pass traits along to offspring.

• Evolution
• Natural Selection
• Extinction
• Artifical Selection

When every organism of a species has died.

• Evolution
• Natural Selection
• Extinction
• Artificial Selection

Natural selection is when ____________ decides who survives and who doesn't

• nature
• humans
• animals
• years

Species have evolved into two different species when...

• the populations are separated geographically
• the populations look different
• the populations can no longer interbreed
• the populations adapt

Inherited variation means...

• an animal produces a large number of offspring.
• some individuals die from starvation, competition, disease or predation.
• individuals have different traits.
• individuals best adapted to the environment have many offspring.

Why would a population with a large amount of genetic variation be more likely to survive a severe climate change in its environment?

• Individuals will only create offspring well-suited to the climate change
• The individuals would produce more offspring
• Individuals better suited to the new climate will help less-suited individuals survive
• Some individuals will posses traits better suited to the new climate and be more likely to pass them on

Tags

NGSS.MS-LS4-4

The purpose of selective breeding is to 

• Get bigger animals
• get smaller animals
• create animals with desirable traits
• create animals with bad traits

Tags

NGSS.MS-LS4-4

NGSS.MS-LS4-5

Which of the following is a term for a group of similar organisms that can reproduce fertile offspring?

• individual
• population
• species
• fossil