Free Printable Pro vs. Eu, competition, & Food Webs

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Pro vs. Eu, competition, & Food Webs

Total questions: 12

Worksheet time: 11mins

Name

Class

Date

What type of cell has a nucleus?

eukaryotic

prokaryotic

Plant and animal cells are examples of

prokaryotic cells

eukaryotic cells

Which of the following is only found in EUKARYOTIC cells?

nucleus

DNA

cell membrane

ribosomes

PROKARYOTIC cells do NOT have

membrane bound organelles

cell membrane

DNA

ribosomes

Which cell type tends to be smaller?

Prokaryote

Eukaryote

there is not a size difference

The introduction of a non-native species into an ecosystem can result in serious ecological problems. This is often because the non-native species –

adapt to changes quickly

mutations

lacks natural predators

provides additional genetic diversity

What factor would cause animals of the same species to begin competing with one another?

increase in precipitation

the presence of decomposers

the introduction of a new food source

limited supply of resources

In an ecosystem, members of the lizards are observed eating members of the insect population. In this same ecosystem, birds are also observed using insects as a food source. The relationship between lizards and birds would best be described as –

predator

competitive

parasitic

mutualistic

How would the removal of earthworms from the food chain affect the other organisms?

The number of bass will increase.

The number of crayfish will decrease.

The crayfish will get their energy directly from the sun.

The number of bass and ospreys (bird) will increase.

10.

Suppose that a new predator of the rabbit migrated to this ecosystem. What is the most likely initial effect on the other organisms?

More competition among the mice for food

More competition among the hawks for food

Less competition among snakes for food

Less grass available for food

11.

How many primary consumers are in this food web?

12.

Who are the primary producers in this food web?

The lizard and the Hawk

The Grasshopper and the Mouse

The rabbit and the Hawk

The lizard and the snake

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Pro vs. Eu, competition, & Food Webs

Total questions: 12

Worksheet time: 11mins

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