food webs and pyramids

Question 1

a food web is more complex because

Answer 1

it shows links between many species

Question 2

we can use …. to represent the relative amounts of organisms at each trophic level

Answer 2

ecological pyramids

Question 3

pyramids of number are drawn to show

Answer 3

the number of each organism counted in the ecosystem

Question 4

pyramids of biomass are drawn to show

Answer 4

the total mass of the organisms in each trophic level
(i.e. the mass of an individual x the number of individuals)