Topic 2 evolution

Question 1

explain the conditions required for natural selection

Answer 1

More organisms are born than can survive.
Organisms vary in their characteristics, even within a species.
Variation is inherited.
Differences in reproduction and survival are due to variation among organisms.

Question 2

what does the little finger represent

Answer 2

population can shrink

Question 3

what does the ring finger represent

Answer 3

mating can make a new population (non-random mating)

Question 4

middle finger

Answer 4

mutation can increase new gene frequency

Question 5

pointer finger

Answer 5

movement into/out of an area can +/- frequency gene flow

Question 6

adaptational

Answer 6

“survival of the fittest” thumbs up “ lack survival” thumbs down

Question 7

micro evolution

Answer 7

small scale effects few genes in population shorter time leads to macro evolution

Question 8

macro evolution

Answer 8

“speciation” long scale changes over elevated time resulting new species

Question 9

What is natural selection

Answer 9

a process by which organisms in nature with genic variations most suited to their local environment survive and leave more offspring

Question 10

what are the conditions required for natural selection

Answer 10

1. genetic variation
2. competition
3. adaption
4. survival of fittest

Question 11

genetic variation

Answer 11

allows for a trait in an entire population to evolve, but not, individually

Question 12

competition

Answer 12

species will overproduce which leads to competition of recourses
- produce more offspring than can survive

Question 13

adaptions

Answer 13

organisms will survive its environment and pass its good advantageous traits
- adaptions+mutations

Question 14

survival of fittest

Answer 14

the good/ adventageous traits will have greater population overtime
enough generations with the good tait, and a new species evolves