NC Check in Review #2

Which would most likely happen if all the soil in an ecosystem washed

away?

• Most of the plants would die.

• Most of the plants would grow in rocks.

• All animals would become carnivores.

• All animals and plants would relocate.

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The number of fish in a lake suddenly increases. How will the increase MOST likely affect the lake?

• There will be less water in the lake.

• More plants will grow in the lake.

• More frogs will live in the lake.

• There will be fewer insects in the lake.

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The diagram shows a food web in an ecosystem. The removal of which organism would result in the MOST damage to the ecosystem?

• fox

• rabbit

• grasshopper

• grass

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An ecosystem is a community of organisms interacting with their physical environment. Why are decomposers an important part of ecosystems?

• They break down dead organisms to return nutrients to the soil.

• They produce their own food for survival.

• They play a role in preventing weathering and erosion.

• They provide most of the energy to consumers.

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Meadow voles are small mouse-like animals that eat plants and insects. Their niche in an ecosystem is a

• omnivore

• herbivore

• carnivore

• scavenger

The following are inherited traits of humans EXCEPT

• long hair

• blue eyes

• long eyelashes

• dimples

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A deer inherits some of its features from its parents. Other features come from its environment. Which feature would a deer MOST likely inherit from its parents?

• a long scar

• brown eyes

• missing teeth

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Which action does a kitten learn from its mother?

• how to grow

• how to meow

• how to hunt mice

• how to nurse milk

Which BEST describes ALL unicellular organisms?

• every cell is round

• every cell can make food

• every cell can move on its own

• every cell can perform its own functions

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Which of these is a structure that is present in all organisms?

• a tissue

• a cell

• a stomach

• a brain

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