FALL SEMESTER PART 3

Question 0

what is an ecological/energy pyramid? how much energy is transferred to each level? how much is lost as heat?

Answer 0

it’s a diagram that shows the relative amount of energy or matter contained within each trophic level
about 10% is available 90% is lost

Question 1

what are 4 things that affect population size?

Answer 1

birth and death rate, immigration, emigration

Question 2

What is the difference between a producer and a consumer? what are the 3 main types of consumer?

Answer 2

producers make their own food & consumers rely on other organisms

consumers: herbivore, omnivore, carnivore

Question 3

what are some materials carbon is stored in?

Answer 3

trees, fossil fuels, dead matter,

organic matter

Question 4

describe the two main steps of the nitrogen cycle?

Answer 4

denitrification) nitrogen goes from the soil into the atmosphere

nitrogen fixation) bacteria are moved nitrogen from the atmosphere & put it into the ground

Question 5

what are the main steps in the water cycle?

Answer 5

1. evaporation - what goes from ground to atmosphere
2. transpiration - evaporation from leafs to atmosphere
3. precipitation - water goes from atmosphere to ground