natural and artificial selection

Question 1

natural selection

Answer 1

selective pressure from the environment, individuals with traits that help them survive reproduce, passing on the alleles to their offspring

Question 2

1 natural selection

selective pressure

Answer 2

when certain environmental conditions select for and against certain characteristics in individuals

Question 3

1 natural selection

fitness

Answer 3

the contribution of an individual makes to the gene pool by producing offspring that can survive long enough to reproduce

Question 4

artifical selection

Answer 4

selective pressure from humans on populations in order to improve or modify desirable traits
* decreases variation and decreases the ability to survive changing environment

local vs grocery food standard, domesticated animals, gardens

Question 5

2 artifical selection

consequences

Answer 5

• genetic diversity is reduced by creating monocultures
• sometimes when a certain trait is selected for, it comes with other negative consequences

Question 6

2 consequences of artifical selection

monocultures

Answer 6

platning of the same variety of species over large portion of land