Animals
Animals that eat both meats and vegetables.
Omnivores
This term is used to describe all the organisms and physical features that live in an environment.
Ecosystem
The approximate percentage amount of available energy that is passed to the next consumer for each level.
10%
A primary factor for life that is the ultimate source of energy.
The Sun
Lakes, ponds, and swamps are all examples of this type of ecosystem.
Freshwater ecosystem
The study of how things interact with the environment and each other.
Ecology
This term is defined as the smallest unit of ecological organization.
Organism
The level in the energy pyramid that contains the most available energy.
Producer level
A system of food chains is called a...
Food web
This biome receives less than 25 centimeters of rain per year.
Desert
A tapeworm enters a dog's intestine to obtain food. In this case, the host is...
The dog
Water flooding a prairie is an example of a nonliving factor that is also called an...
Abiotic factor
A hawk eats a mouse that ate some fruits. The hawk is considered to be this type of consumer:
Second level consumer
Animals that feed on the remains of dead organisms are called...
Scavengers
The use of organic matter, natural fertilizer, and recycled compost helps sustain this method of cultivation:
Agriculture
A group of fish attach to the undersides of a shark and eat any food the shark drops. The fish does nothing for the shark. The type of relationship between the two species is called...
Commensalism
Fill in the blank in order of the levels of the environment: Organism, _____, Community, Ecosystem.
Population
A rabbit eats grass, and the rabbit is eaten by a fox. This example represents a sequence called a...
Food Chain
These organisms are important during the conversion of nitrogen in the nitrogen cycle.
Bacteria
Student Answer: List four different ways we can protect Earth.
Sample Answer:
Conserve water, Recycle/Re-use, Reduce use of fossil fuels, plant more trees.
The number of squirrels in a backyard space is an example that describes this factor.
Population Density
Scientists who study only the living organisms in an environment are observing a certain level of an ecological organization known as a...
Community
Coyotes prey on prairie dogs. Vaguely describe how many prairie dogs are needed compared to coyotes in order for the prairie dog population to survive.
Many more prairie dogs than coyotes.
An animal that is at the top of a food chain and is not preyed upon is referred to as an...
Apex predator
A giraffe and gazelle can be located in this biome:
The Savanna