Herbivores eat producers.

Carnivores eat only __________.

What do organisms depend on to recycle waste and dead material?

According to the unit, the ___________ cycle is a huge recycling system for the entire planet. It involves: evaporation, transpiration, condensation, precipitation, runoff, and collection.

The movement of carbon dissolved in ocean water into the rocks is an example of the carbon cycle occurring slowly.

In the nitrogen fixation process, soil bacteria convert nitrogen into ammonia, nitrites, and then nitrates. Nitrates are then absorbed by producers.

Which food chain below is in the correct order?

Look at the image. Which animal would be considered a primary consumer?

Look at the image. Which animal would be considered a producer?

An _____________ species is a species that is brought into an ecosystem that is not its native ecosystem that disrupts the balance of the ecosystem.

Example: Pythons were brought into Florida. These snakes grow to be sometimes 20 feet long and are eating the mammals and birds. They have seem a major decline in the animal population because of this massive snake problem.

Invasive species can be introduced by human into an ecosystem through inventions like care, boats, and planes.

Giant Sylvania is an aquatic plant native to southern Brazil that is overtaking the lakes in southern states such as Texas. Giant Sylvania thrives in our freshwater lakes and can double in size in about a week. This means is grows REALLY FAST. It is a problem because this floating fern creates a blanket over the surface of the water that can get up to 3 feet thick. This blocks the sun from reaching underwater plants that fish and other animals rely on for oxygen in the water. What kind of species does this paragraph describe?