Evolution

Question 1

How do you decide if 2 individuals are the same species?

Answer 1

Using species concepts (e.g Individuals that can interbreed and produce fertile offspring are considered the same species)

Question 2

What is adaptation?

Answer 2

An inherited trait in which enhances an organism’s ability to survive and reproduce in a particular environment.

Question 3

What is variation?

Answer 3

A difference in physical traits among individuals in a population, usually caused by genetic differences.

Question 4

What is “natural selection”?

Answer 4

A process where organisms better adapted to their environment are able to produce fertile offspring and survive.

Question 5

What is “artificial selection”?

Answer 5

A process in where humans selectively breed organisms for desired traits.

Question 6

What is “sexual selection”?

Answer 6

an aspect in where traits are favoured since they enhance an individual’s chances of mating.

Question 7

Define “common ancestors”.

Answer 7

A species from which 2 or more species have evolved.

Question 8

What are cladograms?

Answer 8

A diagram that shows evolutionary relationships among species based on shared characteristics.

Question 9

What are some examples of evidence for evolution?

Answer 9

Fossil records, comparative anatomy, genetic evidence, biogeography.