CA 5 Review

A mother with heterozygous for type A blood marries a man with type AB blood. What are the chances their child will have type B blood?

• 0%

• 25%

• 50%

• 75%

If two species are geographically isolated for many generations, what will happen to the populations?

• They will each evolve different traits based on their environments.

• Random recombination will ensure the populations will evolve similar traits.

• They have the same DNA so they will evolve similar traits.

• One population will not evolve because it was removed from its natural habitat.

If a species gets divided, over time speciation can occur. What could be a reason for this?

• Organisms on both sides develop differential reproduction.

• Organisms on both sides occupy different niches.

• Geographical isolation leads to divergence of a single species into two species.

• Accumulation of mutations in one population.

Which of the following would be an explanation why green insects would survive through natural selection in a forest environment over purple insects?

• The green insects are avoided by predators because they are bigger.

• The purple insects change their color to black to avoid predators.

• The green insects are preyed upon because they are easily seen.

• The purple insects would be preyed upon because they are easily seen.

How could the first living cells on earth be described?

• Aerobic heterotrophs

• Aerobic photoautotrophs

• Anaerobic heterotrophs

• Anaerobic photoautotrophs

Which statement best supports the understanding of evolutionary theory?

• Chloroplasts evolves before mitochondria because chloroplasts have their own DNA and mitochondria do not.

• Chloroplasts evolved before mitochondria because all eukaryotes contain chloroplasts.

• Mitochondria evolved before chloroplasts because all eukaryotes contain mitochondria.

• Mitochondria evolved first because they possess their own DNA and chloroplasts do not

Which of the following lists the correct order?

• Formation of organic compounds - anaerobic heterotrophs - aerobic heterotrophs - photosynthetic autotrophs

• Formation of organic compounds - aerobic heterotrophs- anaerobic heterotrophs - photosynthetic autotrophs

• Photosynthetic autotrophs - aerobic heterotrophs - formation of organic compounds - anaerobic heterotrophs

• Anaerobic heterotrophs- formation of organic compounds- aerobic heterotrophs- photosynthetic autotrophs

Which of the following would be the most useful in determining if two organisms are related?

• DNA

• Appearance

• Diet

• Behavior

What can be concluded about organisms that share homologous structures?

• They share a common ancestor.

• They use their limbs for similar functions

• They adapted to the same environment.

• They compete for the same food.

How do you tell if two organisms are more closely related on a phylogenetic tree?

• They come from a common ancestor.

• The animals look similar.

• They share more common ancestors.

• They lived around the same time.