Competition and enviromental change

Question 1

what do plants compete for?

Answer 1

Light, space, water and minerals (nutrients)

Question 2

what do animals compete for?

Answer 2

Space (territory), food, water and mates

Question 3

what are the living factors that affect environmental change?

Answer 3

1. A change in the occurrence of infectious diseases
2. A change in the number of predators
3. A change in the number of prey or the availability of food sources
4. A change in the number or types of predator

Question 4

what are the non living factors that affect environmental change?

Answer 4

1. A change in average temperature
2. A change in average rainfall
3. A change in the level of air or water pollution

Question 5

what are indicator species?

Answer 5

Organisms that are very sensitive to changes in their environment and can be studied to show the effect of human activity

Question 6

how do scientists measure non living indicators?

Answer 6

1. Satellites (temperature, sea surface, snow and ice)
2. Automatic weather stations (atmospheric pressure)
3. Rain gauges (rainfall)
4. Dissolved oxygen meters (water pollution)