chapter 12

Question 1

physical factors

Answer 1

air, water, temperature, light, ph level, minerals

Question 2

how to measure physical factors

Answer 2

dataloggers
probe

Question 3

adapative traits

Answer 3

• behavioural
• structural

Question 4

behavioural adaptation

Answer 4

different behaviours of an organism that allows it to survive

Question 5

structural adaptation

Answer 5

physical characteristics that help and animal survive

Question 6

rainforest

Answer 6

relatively warm and humid
- frequent rainfalls

Question 7

population

Answer 7

organisms of the same kind living in the same environment

Question 7

organism

Answer 7

adapted to the environment it lives in

Question 8

community

Answer 8

different populations and animals living and interacting in a particular environment

Question 9

exosystem

Answer 9

interaction between the community and physical environment

Question 10

relationships

Answer 10

• predator-prey relationship
• mutualism
• parasitism

Question 11

parasitism

Answer 11

organism that causes harm to the host without killing it

Question 12

how do animals obtain energy

Answer 12

feed on plants/other animals
- CPE in food is used by consumer during respiration
- nutrients are transferred from one organism to another

Question 13

flow of energy

Answer 13

• produce absorb light energy from the sun, used to produce food through photosynthesis
• stores CPE
• producers respire to release energy required for life processes
• obtain energy through feeding on plants/animals
• respire to release energy stored in food
• release energy through poop
• decomposers feed on remains of dead organisms and faeces, release energy through respiration
• at the stage 90% of energy is released into environment as heat energy