definitions

Question 1

independent variable

Answer 1

thing you’re purposely changing, goes on horizontal axis of a graph

Question 2

dependent variable

Answer 2

thing you’re measuring, goes on vertical axis of a graph

Question 3

producers

Answer 3

organisms that make their own food (e.g. photosynthesising plants)

Question 4

consumers

Answer 4

organisms that eat other living things (e.g. animals)

Question 5

decomposers

Answer 5

organisms that secrete digestive enzymes to breakdown dead organic matter to obtain their food to help recycle nutrients a

Question 6

physical environment

Answer 6

all the non-living (abiotic) factors which affect growth and survival of living things. (e.g. temperature, carbon dioxide concentration, minerals in soil, etc.)

Question 7

population (ecology)

Answer 7

the total amount of individuals of one species in a particular habitat at a particular time

Question 8

pyramids of number

Answer 8

shows number of each organism of each species in an ecosystem (not uniform shape)

Question 9

pyramids of biomass

Answer 9

shows total mass of the organisms of the species in each trophic level (mass of individual organism x amount of organisms), uniform shape

Question 10

pyramids of energy

Answer 10

shows total energy available in each trophic level per square metre per year, the amount of energy should decrease between each trophic level