evidence of evolution

Question 1

what are the evidence for evulution that need to be present

Answer 1

1. all life has a common ancestor
2. species are mutable and change over time
3. the position of species in time and space is constant with their relationships to one another

Question 2

what is the hierarchal organisation of life.

Answer 2

we can create a tree (phylogeny) that we classify everything where everything is linked from a common ancestor.

Question 3

what is homology

Answer 3

a characteristic that is shared by two or more organisms that have come fro the same ancestor.

Question 4

explain what convergent evolution is

Answer 4

the idea that structures are modified to solve environmental challenges/ selective forces.

Question 5

explain embryology

Answer 5

development reflects phylogeny

Question 6

explain vestigial organs

Answer 6

loss of their original functions

Question 7

explain the concept of imperfect bodies

Answer 7

a design in the body that is basically ‘unintelligent’. eg. eye having a part that makes ti hard for us to see.

Question 8

explain biogeogprahy

Answer 8

seeing animals in similar areas before the earth divided.

Question 9

explain intermediate forms

Answer 9

if smth evolved from smth else, we must see organisms that have the same characteristics of the two.

Question 10

explain evolution in our lifetimes

Answer 10

organisms with fast generation times are observed to have evolved on short timescales in response to strong selection pressure

Question 11

artificial selection

Answer 11

choosing desired traits to modify them.