5.1 Food production

Question 1

biological control of pests

Answer 1

use of other species to kill pests

Question 2

intraspecific predation

Answer 2

where an organism of one species kills an organism of a different species

Question 3

lactobacillus

Answer 3

a bacterial species used to make yoghurt

Question 4

pesticides

Answer 4

chemicals used to kill pests
can be split into herbicides which are used to kill weeds and insecticides which are used to kill insects

Question 5

yeast

Answer 5

unicellular fungi used to produce bread
they anaerobically respire to produce carbon dioxide which makes the bread rise and the ethanol which is also produced evaporates when the bread is heated