Human Impact On Evolution

Question 1

Global warming/ climate change

Answer 1

Climate change has caused mass extinctions

Some species already extinct (golden toad in mountaintop cloud forests, drought ruined habitat)

Question 2

How do species overcome global warming/ climate change

Answer 2

If climate change slow enough species can evolve (yeast to high salinity)
Others can migrate
Reproduce fast/ evolve

Question 3

Pesticides

Answer 3

Weeds becoming resistant to roundup
Organophosphate herbicide
Europe lists it as carcinogen
Current use of roundup much higher than tested safe

Question 4

Antibiotics/ bacteria resistance

Answer 4

Bacteria rapidly developing resistance to antibiotics due to
High reproductive rates and lateral gene transfers

Question 5

Emergent disease

With examples

Answer 5

A new disease evolves to live in new host 
Bird flu 
Swine flu
AIDS- from chimps 
Also viruses mutate into new virus