Unit 6 Review Science

Hawks eat snakes. Snakes eat toads. Toads eat grasshoppers. Grasshoppers eat plants. Which of the statements below about this food chain is correct?

• toad is a herbivore.

• grasshopper is a producer.

• hawk is a second-level consumer.

• snake is a first-level consumer.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-3

During the decomposition process, the wastes of living organisms are broken down and their nutrients are returned to the soil. What is the most important cause of decomposition?

• air

• sunlight

• scavengers

• bacteria and fungi

Why are decomposers important in an ecosystem?

• They are herbivores and keep down the population of plants.

• They are carnivores and keep down the population of animals.

• They produce more food for other organisms.

• They break down dead plants and animals.

Tags

NGSS.MS-LS2-3

Holly is doing a report on photosynthesis. She draws a diagram to represent the materials used by plants to make food and the byproducts that this process produces. Which is a correct diagram?

• sunlight+carbon dioxide+water > sugar+oxygen

• sunlight+oxygen+water > sugar+carbon dioxide

• sunlight+carbon dioxide +sugar > water+oxygen

• sunlight+oxygen+sugar > carbon dioxide+water

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

What is the process plants use to produce food?

• carbon dioxide

• photosynthesis

• chloroplast

• sunlight

Tags

NGSS.MS-LS1-6

What need does chlorophyll help to meet?

• making food

• releasing oxygen

• absorbing soil nutrients

• taking in carbon dioxide

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Which type of organism makes its own food?

• consumer

• decomposer

• producer

• scavenger

Tags

NGSS.MS-LS1-6

What does a food web show?

• how predators catch their prey

• what food organisms eat

• why organisms find food

• when organisms seek food

Tags

NGSS.MS-LS2-2

NGSS.MS-LS2-3

Which kind of diagram shows how much energy passes along as one organism consumes another?

• decomposition

• energy pyramind

• food chain

• food web

Tags

NGSS.MS-LS2-3

Alex notices a small black spot growing on an orange in the back of his refrigerator. He doesn't eat the orange. He looks at the orange a week later. Which of these is he most likely to observe?

• The fungus is gone.

• The fungus has not changed.

• The fungus has grown larger.

• The fungus has changed color.