In this tundra food web, if grasses were removed what would happen to the sustainability of the ecosystem?

The ecosystem would collapse, because it lost its main producer.

There would be an overpopulation of arctic hares and lemmings.

Polar bears would move to a new ecosystem.

Wildflowers would die out from the ecosystem.

How do consumers get their energy?

providing food for other organisms

A creature that lives in/on another living organism

A creature that lives next to another animal

A creature that lives under the water in the ocean

A creature that allows another organism to live in/on it

A tapeworm lives in the intestines of its host. Which example best describes the relationship between the tapeworm and its host?

The tapeworm benefits from its host, and the host is negatively affected.

The tapeworm benefits from its host; however, the host is not affected.

The tapeworm does not benefit from its host, but the host does benefit.

Ecosystem is the level of organization that is best described as including –

various species in an area and the abiotic factors on which they depend.

only a single individual of a single species plant or animal.

two species that live in the same habitat and depend on each other.

all of the abiotic factors which characterize a geographic area.

Community is the level of organization which is best described as all -

living things, regardless of species, in an area.

members of a certain species in a given area.

members of a species regardless of where they live.

living and non-living components of an area.

Which of the following describes an interaction between a biotic factor and an abiotic factor?

A black bear uses a cave for a winter home

A pair of birds build a nest in a tree

A squirrel gathers nuts to store for winter

A vulture eats the remains of a wild pig

Which of the following best describes a population?

All the organisms of a certain species in a given area

All the organisms in a habitat that compete for resources

One individual and all the organisms on which it depends

All of the living organisms which can be found in an area

Which of the following lists includes only abiotic factors?

Rainfall amounts, average daily temperature, minerals in soil

Plants, animals, average daily temperature

Minerals in soil, plants, rainfall amounts

Animals, rainfall amounts, soil composition

Which of the following correctly lists the levels of organization from least complex to most complex?

Organism, Population, Community, Ecosystem

Community, Organism, Population, Ecosystem

Population, Community, Ecosystem, Organism

Ecosystem, Population, Organism, Community

Grieder Interdependence

Authored by Isaac Grieder

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8th Grade

NGSS covered

Used 25+ times

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MULTIPLE CHOICE QUESTION

1 min • 1 pt

What would best explain the decrease in primary producers?

an increase in solar energy

a decrease in O2 levels in the H2O

a decrease in the population of tertiary consumers

an increase in the population of primary consumers

A decrease in the frog population would MOST likely lead to an increase in the population of which organisms?

owl

grass

snake

grasshopper

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

An organism that hunts its food

Predator

Prey

Hunter

Gather

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

An organism that is hunted for food

Predator

Gather

Prey

Hunter

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

One organism benefits while the other is harmed +/-

Commensalism

Parasitism

Mutualism

Symbiotic Relationship

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Lives in or on another organism and derives nourishment from them resulting in harm to the host

Host

Parasite

Predator

Prey

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

An organism in which a parasite lives and/or derives nutrients from

Host

Parasite

Predator

Prey

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Grieder Interdependence

What would best explain the decrease in primary producers?

A decrease in the frog population would MOST likely lead to an increase in the population of which organisms?

An organism that hunts its food

An organism that is hunted for food

One organism benefits while the other is harmed +/-

Lives in or on another organism and derives nourishment from them resulting in harm to the host

An organism in which a parasite lives and/or derives nutrients from

A condition that occurs when two or more organisms compete for the same resources or food within an ecological community

Eats plants (example: deer)

Eats other animals (example: tiger)

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