Biology Ch15 Sampling

Question 1

Where do most plants get light from?

Answer 1

The sun

Question 2

The name given to the mass of living material in an organism or population is the..?

Answer 2

Biomass

Question 3

What gas is removed from the atmosphere by plants and algae?

Answer 3

Carbon Dioxide, CO2

Question 4

What is the name given to the square frame used for sampling organisms in an environment?

Answer 4

Quadrat

Question 5

Environments are sometimes sampled along a straight line what is this line called?

Answer 5

Transect

Question 6

The availability of oxygen can effect living organisms, the availability of another gas also effects their distribution. What is this gas called?

Answer 6

Carbon Dioxide

Question 7

What is the piece of apparatus used for measuring living organisms in a certain area?

Answer 7

Quadrat

Question 8

What happens to the total biomass available as you move up a food chain?

Answer 8

It decreases

Question 9

The biomass is greatest at the.. level of a food chain.

Answer 9

Bottom

Question 10

Plants use Carbon Dioxide for..?

Answer 10

Photosynthesis

Question 11

The list below shows the physical factors which affect the distribution of organisms.(Temperature, Water, Nutrients, Carbon Dioxide, Oxygen) What else?

Answer 11

Light Intensity

Question 12

When using quadrats what should you do to get an accurate estimate of the numbers of an organism.

Answer 12

Create a grid and use random numbers to pick on which square of the grid to place your quadrat.