evolution

Question 1

give evidence fo revolution

Answer 1

fossil record and antibiotic resistant bacteria

Question 2

define a fossil

Answer 2

remains of organism from the past

Question 3

describe how fossils are formed

Answer 3

some of the organisms doesn’t decay
buried and compressed
hard parts replaced by minerals

Question 4

explain why we don’t have fossils for the first life forms

Answer 4

they were soft bodied so nothing fossilised or the fossil traces have been destroyed

Question 5

deefine extincion

Answer 5

when all individual of a species have died

Question 6

list the causes of extincion

Answer 6

new predators
new diseases
competition
environmental change

Question 7

explain why bacteria evolve rapidly

Answer 7

because they reproduce rapidly

Question 8

describe how antibiotic resistant bacteria evolve

Answer 8

mutation
some not killed
reproduce and pass on mutations

Question 9

explain how we can slow down the process of antibiotic resistant

Answer 9

only use antibiotics when necessary
complete course of antibiotics
restrict to treat animals

Question 10

explain why we cant just develop new antibiotics

Answer 10

its expensive and a very slow process