How do decomposers help the ecosystem?

What cycle of nutrients is affected by the combustion (burning) of fossil fuels?

A snake eats a frog, the frog eats an insect, an insect eats a plant. What trophic level is the frog?

A snake eats a frog, the frog eats an insect, an insect eats a plant. What trophic level is the snake?

What is the original source of energy for all life in ecosystems?

Where is the most energy in an energy pyramid found?

What is true about the deer?

Select ALL the things in the food web that the snake eats.

You move to a house next to a train station. At first the train sounds keep you awake and startle you, but eventually you no longer respond to the train noise. What is this an example of?

A dog learns that when he goes potty outside, he gets a treat. What type of behavior is this?

Baby sea turtles crawl toward the light on the horizon of the ocean when they hatch. What type of behavior is this?

How does burning fossil fuels affect the planet?

Birds walk behind elephants and eat the insects that are attracted to the elephant droppings. What kind of relationship would this be?

What are mutualism, commensalism, and parasitism examples of?

Which of the following is a density INDEPENDENT factor that can affect a population?

Why is it important to not introduce non-native species (invasive species) to an environment?

Which process(es) is/are adding carbon to the atmosphere?

What is it called when pesticides are found to be at higher levels at the top of a food chain than the bottom?

If humans hunted all of the foxes, what is a change would we see in the food web/ecosystem?