Science 7- Ecology Test

A habitat consists of grasses, beetles, lizards, and owls. If 57,000 K Cal is available to the producers, how much energy is available to the secondary consumers?

570 kcal

If 65,000 kcal are available in the producers trophic level, how much energy is available to the secondary consumers?

650 kcal

Approximately what percentage of energy in a trophic level is lost as heat and other life processes?

90%

Symbiosis

A close relationship between two species that benefits at least one of the species.

Which organism out of a tiger, a human, a mushroom, and a tree is an omnivore?

A human

Which of the following is an example of a producer? A palm tree A mushroom Beetles An amoeba Coral

A palm tree

community

All the different populations that live together in an area

producer

An organism that can make its own food (energy).

Organisms that are able to make their own food are known as _________?

Autotrophs

In addition to fungi, what other organism is responsible for returning nutrients to an environment by break down decaying matter?

Bacteria

A seal in the arctic feeds on fish and penguins. What type of consumer is a seal?

Carnivore

Mushrooms are an example of a(n)_________.

Decomposer

What is the name of the model we used to show the flow of energy through trophic levels in an ecosystem?

Energy pyramid

A food chain Consists of a carrot, a rabbit, and a fox. Which organism is the secondary consumer?

Fox

What is likely missing from the following food chain: leaf—> grasshopper—> ___________ —> fish

Frog

A habitat consists of grass, grasshoppers, frogs, and snakes. Which group would be considered the secondary consumers?

Frogs

A food chain consists of a zebra, grass, and a lion. Which organism should be first in the food chain?

Grass

A deer typically feeds on grasses, berries, vegetables in its habitat. What type of consumer is the deer?

Herbivore

A habitat consists of fruit trees, ladybugs, lizards, and hawks. Which group would be considered the primary consumers?

Lady bugs

What is likely missing from the following food chain: berries—> ________—> snake —> owl?

Mouse (because mice eat berries and snakes eat mice)

Producers

Organisms in a food chain that make energy for the ecosystem.

What is the name of a process that producers used to make their own food?

Photosynthesis

Which tropical level in an ecosystem contains the most available energy?

Producers

mutualism

When both species benefit from the relationship. like bees pollinating flowers

Third level consumer (tertiary)

a top preditor/at the top of the food chain. Animals that eat secondary consumers.

predator

an animal that hunts and kills other animals for food. It is a consumer (carnivore or omnivore).

comsumer

an organism that cannot make its own food, a heterotroph.

second level consumer (secondary)

are animals that eat animals. Many are omnivores, meaning they eat both plants and animals.

decomposer

consume wastes and dead organisms

Carnivore

eat herbivores, omnivores, or other carnivores.

Omnivore

eat producers and consumers (or plants and animals)

herbavore

eats producers (plants)

biosphere

every place on earth that can support life.

What is another name for a consumer?

heterotroph

ecosystem

is all of the living and non-living features of an environment.

Commensalism

is when a species benefits and the other organism doesn't really get anything out of it.

parasitism

is when one organism gets helped in a relationship and the other organism is harmed, like fleas on a dog.

abiotic

non-living parts of an ecosystem (air/water/soil/sun)

first level consumer (primary)

the first (eaters) in a food web. These will almost always be herbivores.

competition

the struggle between organisms to survive in a habitat with limited resources

Biogeography

the study of where organisms live and how they got there.