4.7.1, adaptations, inheritance and competition

Question 1

list 8 abiotic factors which can affect a community

Answer 1

• Oxygen
• Carbon dioxide
• water/moisture
• minerals
• light
• PH
• wind
• temperature

Question 2

list 4 biotic factors which can affect a community

Answer 2

new predator

new pathogen

availability of food

one species OUTCOMEPTING another so the numbers are no longer sufficient to breed

Question 3

what do organisms require to survive and reproduce

Answer 3

a supply of materials from:

their surroundings

and from other living organisms there

Question 4

what do plants compete for

Answer 4

water

light

space

mineral ions from the soil

Question 5

what do animals compete for

Answer 5

food

mates

territory

Question 6

what is it called when organisms in an eco system depend on each other in a number of different ways

Answer 6

interdependence

Question 7

qualities of high biodiversity within an ecosystem

Answer 7

population sizes are relatively constant

change in size of population in one species unlikely to have a severe/ detrimental affects on another

plenty of other species to eat

Question 8

qualities of low biodiversity within an ecosystem

Answer 8

population sized subject to fluctuation

change in population size of one species (e.g due to climate change) could have profound affects on the whole food web within an ecosystem