B17 - Organisations of Ecosystems

Question 1

Define prey.

Answer 1

anmls eaten by other anmls

Question 2

Define predator.

Answer 2

anmls that eat other anmls

Question 3

What is a producer?

Answer 3

green plant that is source biomass

Question 4

What is a primary consumer?

Answer 4

organism that eats producers

Question 5

What is a secondary consumer?

Answer 5

organism that eats prmry cnsmr

Question 6

What is a tertiary consumer?

Answer 6

organism that eats scndry cnsmr

Question 7

What is an apex predator?

Answer 7

organism that eats trtry cnsmr

Question 8

What piece of equipment is used for random sampling of organisms?

Answer 8

quadrat

Question 9

What happens if we only place the quadrat once?

Answer 9

won’t get sample that accurately represents whole area

Question 10

What is the equation for total population size?

Answer 10

(total area/ area sampled) x no. of orgnsms of species counted in sample

Question 11

Where does the carbon cycle start?

Answer 11

CO2 in atmosphere

Question 12

How does carbon enter the carbon cycle?

Answer 12

plants & algae take C in by photosynthesis

Question 13

From the carbon cycle, how does carbon return back to atmosphere?

Answer 13

aerobic respiration from plants