Symbiosis Review

A close relationship between different species of organisms is known as:

• co-habitation

• symbiosis

• animal friends

• interactive species

Tags

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It is a _______________ relationship when one organism is helped and one organism is not helped and not harmed.

• parasitism

• mutualism

• commensalism

• friendship

Tags

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It is a _______________ relationship when one organism is helped and the other organism is also helped. (both benefit)

• parasitism

• mutualism

• commensalism

• friendship

It is a _______________ relationship when one organism is helped and the other organism is harmed or hurt.

• parasitism

• mutualism

• commensalism

• friendship

Barnacles will latch on to large whales in the ocean. The barnacles get a free ride, a home, and are able to get food while attached to the whale. The whale is neither helped nor harmed. The relationship between the whale and the barnacle is an example of:

• parasitism

• mutualism

• commensalism

• predation

A drought causes a large amount of sunflowers to die. Sunflowers and butterflies have a mutually beneficial relationship. The butterfly population will now:

• increase

• decrease

• be unchanged

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

A new type of fish invade a lake habitat in a forrest, and mountain lion has a new food source to eat. Mountain lions and rabbits have a predatory relationship. The local rabbit population will now:

• increase

• decrease

• no change

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

Some thick vines are cut down in a forest, exposing the forest floor to more sunlight; thick vines and clover have a competitive relationship. The clover population will

• increase

• decrease

• be unchanged

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

In a typical ecosystem food chain, cats will eat small lizards or rats and those lizards will eat insects and those insects will eat plants....and or course we know the plants get energy from the sun!

What would be an example of a predator-prey relationship in this food chain?

• sun and rat

• rat and plant

• cat and lizard

• rat and lizard

Tags

NGSS.MS-LS2-2

In a typical ecosystem food chain, cats will eat small lizards or rats and those lizards will eat insects and those insects will eat plants....and or course we know the plants get energy from the sun!

What would happen if all of the lizards died?

• Nothing. They wouldn't affect this food chain.

• The insect population may increase.

• Plants would decrease.

• Cats would have nothing to eat.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-3

NGSS.MS-LS2-4