Evolution

Question 1

Adaptation

Answer 1

-A genetic trait that helps an organism survive in its environment - ex. eagle’s eye sight

A species ability to change over time to help it and future generations to survive better that the rest

Question 2

Mutation

Answer 2

-A change in DNA

A good or bad slow gradual change over time

Ex human brain and thumbs - these are good examples of adaptations (which resulted from random mutations)

Question 3

Species

Answer 3

types of animal that are similar to animals of the same category
-can mate together

Tree frog and a bull frog are two different species

Question 4

Evolution

Answer 4

A theory made by Charles Darwin that all animals came from a similar common ancestor and changed (to suit there lifestyle) - based on differential survival = natural selection

Question 4

Fossils

Answer 4

A bone that has been buried and is a living record of the animals past life

A dinosaurs bone

Question 5

Extinct

Answer 5

When a species dies out and is no longer able to reproduce

An animal that died out due to not- having the adaptations to survive-

Question 6

Homologous structures

Answer 6

A structure with the same structure but a completely different function

A ✋ and a whales flipper

Question 7

Vestigial structures

Answer 7

A structure that we or an animal once used it but we evolved and it is no longer used

Like our tail bone we no longer use it but still have it

Question 8

Variation

Answer 8

How two things of the same species look similar but not the exact same thing due to variation

Blue eyes brown eyes

Question 9

Natural selection

Answer 9

When a species evolves to better suit its surroundings
-review the 4 factors of natural selection in your notes-
A bunny changes from eating red flowers to green ones

Question 11

Population

Answer 11

How many of a species there is in an area
-a group of species that lives in the same area that can reproduce together
Ex 34 deer in the river valley along with 8 wolfs here
-all the deer in Sidney