EFMS Pre-Bio Chapter 13 Review

In addition to herbivores, another type of consumer is a (an)

In the nitrogen cycle, bacteria that live on the roots of plants

The process by which organisms keep their internal conditions fairly constant is called

The series of steps in which a large fish eats a small fish that has eaten algae is a 

Which group of organisms is always found at the base of a food chain or food web?

All of life on Earth exists in a region known as

The rate at which organic matter is created by producers is known as

Which organism is a decomposer?

Which is true about the energy pyramid?

Which of the following is an example of a detritivore?

Which of the following is NOT a type of ecological pyramid?

Runoff from heavily fertilized fields can result in

The study of interactions among organisms and between organisms and their environment is

Groups of different species that live together in a defined area make up a (an)

The total mass of living tissue at each trophic level can be shown in a (an)

Each step in a food chain or food web is called a (an)

Which of the following is NOT a characteristic of all living things?

Autotrophs are organisms that 

When a nutrient is scarce or cycles very slowly, this substance can be a (an)

What is one way in which water enters the atmosphere in the water cycle?

Nutrients move through an ecosystem in

Which of the following levels of organization correctly goes from smallest to largest?