Energy Flow in Ecosystems Tuesday 4/8

Word Cloud

Using only 1 or 2 words, describe why/how the sun is the main source of energy for ecosystems?

Open Ended

Describe what you know about how organisms get energy?

Poll

True or False? Consumers are also called "autotrophs".

• That's True!

• That Mess is False!

Multiple Choice

What would have the greatest impact long term to reduce carbon dioxide (CO2) in the air?

• planting more trees in an area

• increasing the # of cows in an area

• increasing the # of chickens in an area

• cutting down trees in an area

Match

Match the organism niche to its description.

• herbivore

• carnivore

• omnivore

• chemo-autotroph

• decom-poser

plant eater

animal eater

plant and animal eater

energy from chemical particles

breaks down organic matter

• plant eater

• animal eater

• plant and animal eater

• energy from chemical particles

• breaks down organic matter

Multiple Select

Which is/are true of Food Chains?

Select ALL that apply.

• They describe feeding relationships

• Energy is lost and stored at each trophic level

• A decomposer breaks down remains and wastes

• There are various paths

Multiple Choice

True or False.

Food chains always begin with producers.

• True

• False

Multiple Choice

Which best represents the flow of energy in an aquatic ecosystem?

• small fish>seagull>>phytoplankton>zooplankton

• zooplankton>phytoplankton>seagull>small fish

• phytoplankton>zooplankton>small fish>seagull

• seagull>small fish>zooplankton>phytoplankton

Open Ended

List some ways that energy is lost at each trophic level.

Multiple Choice

True or False?

Organisms in an ecosystem can only occupy one place in a food web.

• True

• False

Multiple Choice

What happens to most of the energy as it moves through a food web?

• It is stored in the producer

• It changes to light energy

• It is used up by organisms in the 3rd trophic level

• It changes into heat energy

Multiple Choice

What best explains why there is a decrease in energy as you move up the energy pyramid?

• It is consumed by predators

• It is stored in abiotic factors

• It is released as heat

• It is used in photosynthesis