Ecology 2 Review

Question 0

What is a food web?

Answer 0

A food web is a group of several food chains.

Question 1

What is a food chain?

Answer 1

A food chain uses pictures or words and arrows to show the movement of energy in an ecosystem.

Question 2

How much energy is transferred between levels of a food chain/web?

Answer 2

10%

Question 3

What happens to the rest of the energy?

Answer 3

It’s used by the organism that was eaten.

Question 4

Equation for photosynthesis is…

Answer 4

CO2+H2O+sunlight=C6H12O6+O2

Question 5

Define biomagnification

Answer 5

When a substance increases as it moves up the food chain

Question 6

Stimulus is…

Answer 6

A change in an organisms surroundings that cause them to react

Question 7

A response is…

Answer 7

An action caused by a stimulus

Question 8

Phototropism is…

Answer 8

Plants go toward sunlight

Question 9

Geotropism is…

Answer 9

Plants’ response to gravity. Roots grow down. And shoot grows up.

Question 10

Turgor pressure is…

Answer 10

Plants’ ability to use excess water to make its stem stick up

Question 11

What are dichotomous keys used for?

Answer 11

Classifying objects or organisms