Natural Selection

Question 1

Describe mutation

Answer 1

Random and spontaneous change in DNA which can cause change in physical features which can be an advantage, disadvantage or neutral

Question 2

Describe Variation

Answer 2

Variation is caused by mutations and increases a species chance of survival

Question 3

Describe evolution

Answer 3

The changes in a populations physical features which increases the chances of a population surviving in response to changes in environmental conditions

Question 4

Describe species

Answer 4

A species is a group of organisms that can interbreed to produce fertile offspring

Question 5

Steps of Natural selection

Answer 5

1) mutations
2) variation
3) advantages
4) survival of the fittest (natural selection)
5) reproduce

My very angry sister runs

Question 6

Describe the meaning speciation

Answer 6

Speciation is the process by which a new species is created form a single population, by the process of natural selection.

Question 7

Deceive the process of speciation

Answer 7

2) Isolation
3) Mutations
4) Natural Selection
5) Evolve
isolated mice need eggs

Question 8

Describe the separation step of speciation

Answer 8

A small group of organisms get separated from the original population

Question 9

Describe the isolation step of speciation

Answer 9

The small group is isolated from the original population so it can no longer breed with members of the original population

Question 10

Describe the mutation step of speciation

Answer 10

A mutation is a random change in the DNA of an organism which causes a change in the organisms physical features

Question 11

Describe the natural selection step of speciation

Answer 11

Natural selection will cause different advantages mutations in each group to be developed, due to different selection pressures

Question 12

Describe the evolve step of speciation

Answer 12

Over time each group will evolve until they become so genetically different they are two species