Long responses

Question 1

4 mark lion+tiger question brreding

Answer 1

m tiger+f lion= tigon
m lion+f tiger= liger

male ligers are bigger than tigons cause gene is imprinted

if m lion has gene for large size, liger will always inherit ad express this

but isnt imprinted in male tigers, so no inheritance of epigenetic tags of the large size gene

Question 2

keystone specoes

Answer 2

bees 8polinators)
carbon absorbers (see grass, preform carbon sequestion)

Question 3

eutropication

Answer 3

high level of mineral ions enter body of water

plant and algae growth accelecates

therefore: pants on surface block ligth for photosysnthesis (algae under die) or winter/no more nutrience algae dies

increased dead matter, decomposer population rises as used o2 to respirate

low o2 levels so species cant survive

Question 4

i