concept 2

Question 1

Species

Answer 1

organisms that can produce fertile offspring

Question 2

Adaptive radiation

Answer 2

small scale divergent evolution

Question 3

Differentiate between speciation and extinction

Answer 3

Speciation is the forming of a new species while extinction is the elimination of an existing species

Question 4

Explain why isolation would be necessary for speciation to occur

Answer 4

• There has to be some sort of barrier that prevents a
  subset of a population from reproducing with the rest of
  the population so that over time, continual reinforcement of
  only reproducing with each other leads to favoring traits in
  a small gene pool.
• This has to happen enough that the gene pool becomes
  so different that it can no longer reproduce and create
  viable offspring with the original population’s gene pool.

Question 5

Differentiate between gradual and mass extinction

Answer 5

Gradual extinction happens slowly over time, wheres mass
extinction happens suddenly

Question 6

Differentiate between divergent and convergent evolution. Include an example of each in your
explanation

Answer 6

• Divergent evolution occurs when related species branch off from each other, due to living in different environments.
• Ex. Bears and monkeys evolving from an ancestral mammal species.
• Convergent evolution occurs when unrelated species evolve similar characteristics due to living in similar environments.
• Ex. Bats and bumble bees both have wings because they fly.

Question 7

Explain the significance of coevolution.

Answer 7

when two things evolve in response to each other