Food Chains- Schulze

A pond is home to populations of dragonflies, frogs, cranes, and small fish. What other population would most likely live in the pond ecosystem?

• Squirrel

• Sea star

• Turtle

• Polar bear

The roadrunner is a desert bird that consumes insects, lizards, spiders, and rattlesnakes.

What would likely happen if the roadrunner population disappeared from its ecosystem?

• There would be no more fruits or seeds.

• There would a decrease in spider populations.

• The rattlesnake population would stay the same.

• There would be an increase in lizard populations.

The shortgrass prairie is an ecosystem found in the Great Plains.

Many different populations of animals depend on the prairie ecosystem for survival. A typical community includes animals such as snakes, birds, mice, rabbits, and insects.

Which food chain most accurately demonstrates the flow of energy in a shortgrass prairie ecosystem?

• Sun→ grass→ grasshopper → bird → mouse→ pronghorn

• hawk → snake → mouse → grasshopper→ grass

• Sun→ grass→ grasshopper → mouse → snake → hawk

• rabbit→ snake → hawk → skunk → mouse

Observe the food chain above. Which organism’s population would increase if snake were removed from the ecosystem?

• Grass

• Finch

• Snake

• Hawk

Where does the energy start in this food chain?

• Plant
• Sun
• Deer
• Wolf

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NGSS.MS-LS2-3

What is one example of the way that energy flows in the food chain above?

• Energy flows from grass to the Sun

• Energy flows from hawks to snakes

• Energy flows from grass finch to snake

• Energy flows from snakes to finches

What is a food chain?

• a diagram with animals only

• stages an organism goes through as it grows

• the place where an organism lives

• the path of energy in an environment

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NGSS.MS-LS2-3

Which statement about the grassland ecosystem is best supported by the text in the book?

• The climate is hot in the grasslands because there is very little rain.

• Predators live in the grasslands because there is very little rain.

• Few tall trees grow in the grasslands because there is not enough rain to help them thrive.

• The climate is cool in the grasslands because there is very little rain

A class made a list describing the parts of an ocean ecosystem.

*Seaweeds

*Mollusks

*Plankton

*Fish

*Saltwater

*Sand

Which statement best describes how the environment supports populations and communities of plants and animals in the ocean ecosystem?

• Marine plants use the sunlight to make their own food. Marine animals eat the plants and other marine animals

• Algae produces freshwater in the ocean through photosynthesis. Plankton and fish live in the fresh water.

• Marine plants grow larger in the coral reefs. Marine animals do not live in the coral reefs because of predators.

• Marine animals drink the saltwater for nutrients.

What will most likely happen if bees are removed from the ecosystem?

• Flowers could be pollinated but would produce smaller seeds, making less food for plant-eaters.

• Some flowers would not be pollinated, fewer seeds would be produced, and there would be less food for plant-eaters.

• Flowers could be pollinated and would produce more seeds, making more food for plant-eaters.

• Flowers would not be pollinated, more seeds would be produced, and there would be more food for plant-eaters.