Topic 2 Distribution Of Organisms

Question 1

What is an Abiotic factor ?

Answer 1

A non-living factor

Question 2

What is a Biotic factor ?

Answer 2

A living factor

Question 3

3 examples of abiotic factors :

Answer 3

1 : light intensity
2 : moisture
3 : temperature

Question 4

3 examples of biotic factors:

Answer 4

1 : disease
2 : competition
3 : grazing

Question 5

How to measure light intensity ?

Answer 5

With a light meter

Question 6

Errors with a light meter ?

Answer 6

A shadow could be cast
Make sure it’s the same time of day

Question 7

How to measure moisture?

Answer 7

Moisture meter

Question 8

Errors with a moisture meter ?

Answer 8

Could be dap already
Could not have been cleaned

Question 9

How to measure temperature ?

Answer 9

With a thermometer

Question 10

Errors with a thermometer?

Answer 10

Not left long enough

Question 11

Errors when using a quadrant ?

Answer 11

Not thrown randomly
Not enough samples

Question 12

Errors with a pitfall trap ?

Answer 12

Not at ground level
Not camouflaged well

Question 13

What is an indicator species ?

Answer 13

Their presence, abundance or absence indicated the level of pollution in the near environment