Food Webs and Symbiosis Check In

1.

Multiple Choice

30 sec

1 pt

Cattle egrets forage (feed) in fields among cattle. The egret gets easy access to flying insects stirred up by the cattle, and the cattle don't care if they are there or not.

mutualism

commensalism

competition

parasitism

2.

Multiple Choice

30 sec

1 pt

Barnacles create home sites by attaching themselves to whales. This neither harms nor benefits the whales. What kind of relationship is this?

Mutualism

Parasitism

Commensalism

3.

Multiple Choice

30 sec

1 pt

Which symbols best describe mutualism?

+,+

+,-

+,0

-,0

4.

Multiple Choice

30 sec

1 pt

A close, long-term relationship in which 2 different organisms live in close association with each other.

Carrying Capacity

Coexistence

Limiting Factor

Symbiosis

5.

Multiple Choice

30 sec

1 pt

When 2 or more individuals or populations try to use the same resource such as food, water, shelter or sunlight.

Coexistence

Competition

Cooperation

Carrying Capacity

6.

Multiple Choice

30 sec

1 pt

Species A swims alongside Species B. Species A feeds off the leftover scraps that Species B does not need.

Commensalism

Parasitism

Mutualism

7.

Multiple Choice

30 sec

1 pt

Which symbols best describe parasitism?

+,+

+,-

+,0

-,0

8.

Multiple Choice

30 sec

1 pt

What type of symbiosis? Hummingbirds feed on nectar from flowers. The flowers are pollinated by hummingbirds as they move from flower to flower.

commensalism

mutualism

parasitism

predation

9.

Multiple Choice

30 sec

1 pt

Energy from the sun enters living systems through-

decomposers

scavengers

consumers

producers

10.

Multiple Choice

30 sec

1 pt

In the diagram, which letters represent first-order (primary consumers?

S and U

T and V

U and T

V and S

11.

Multiple Choice

30 sec

1 pt

The diagram above is intended to show relationships in an ecosystem. What do the arrows represent?

the direction of population migration

differences in dietary habits

progressively smaller organisms

the direction of energy flow

12.

Multiple Choice

30 sec

1 pt

According to this food web, which of the following are omnivores?

snakes

rabits

mice

grasshoppers

13.

Multiple Choice

30 sec

1 pt

_______ occurs when 1 organisms kills and eats another for food.

Symbiosis

Competition

Predation

Collaboration

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