Evolution and Genetics

Which statement supports the theory of natural selection

• All organisms produce more offspring than can survive.
• Organisms live in harmony with one another despite limited resources.
• Organisms with favorable traits are more likely to die.
• Over time advantageous traits will be found in more of the population.

Tags

NGSS.HS-LS4-2

NGSS.HS-LS4-4

What will most likely happen if a species can no longer produce offspring?

• It will become extinct.
• It will evolve into another species.
• It will move into a new environment and adapt.
• It will begin to mutate into another organism.

Tags

NGSS.HS-LS4-2

NGSS.HS-LS4-5

Which part of Darwin's theory of evolution may be used to describe the results of when lions prey on antelope?

• natural selection
• survival of the fittest
• adaptation to environment
• variation in species

Tags

NGSS.HS-LS4-2

NGSS.HS-LS4-4

What role does genetic variation play in the evolution of species?

• It reduces the chance that species will possess characteristics well-suited for a changing environment.
• It increases the chance that species will possess characteristics well-suited for a changing environment.
• It allows multicellular organisms to change their traits during their lifetimes.
• It allows unicellular organisms to change their DNA after they die.

Tags

NGSS.HS-LS4-2

NGSS.HS-LS4-4

NGSS.HS-LS4-5

Why is DNA important?

• it is very small and very complicated
• it's in everything
• it serves as the blueprint for traits of all living things
• because we eat it every day for energy

Tags

NGSS.HS-LS3-1

NGSS.HS-LS1-1

Which organelle is DNA usually found in?

• cell membrane
• vacuole
• ribosome
• nucleus

The drawing shows the structure of what molecule?

• A DNA molecule
• A lipid molecule
• A carbohydrate molecule
• A protein molecule

Tags

NGSS.HS-LS1-1

What are sections of DNA called?

• DNA

• Genes

• Chromosomes

• Nucleus

Tags

NGSS.MS-LS3-1

A gene determines a __________ such as eye or hair color.

• nucleus

• DNA

• chromosome

• Trait

Tags

NGSS.HS-LS3-1

How many pairs of chromosomes do humans have?

• 21

• 22

• 23

• 24