NGSS.MS-LS1-6

What are plants called in a food chain?

• Producers
• Consumers
• Decomposers
• Scavengers

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NGSS.MS-LS1-6

 Keesha did an experiment to study the rate of photosynthesis in the water plant Elodea. She placed a piece of Elodea in a beaker of water and set the beaker 10 centimeters (cm) from a light source. Keesha counted the bubbles released from the plant every minute for five minutes (min). She repeated the process two more times. First, she moved the light to 20 cm from the beaker, and then she moved the light to 30 cm from the beaker. Keesha’s setup and data are shown below.What is the outcome variable (dependent variable) in this experiment?  

• the number of bubbles produced
• the type of plant placed in the beaker
• the distance of the light source from the plant
• the amount of time the bubbles were counted

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NGSS.MS-LS1-6

The chloroplast is where photosynthesis occurs.

• True

• False

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NGSS.MS-LS1-6

Why do plants need sunlight for photosynthesis?

• The light creates heat needed for photosynthesis to occur

• Plants can't absorb carbon dioxide in darkness

• The light provides the energy needed to power photosynthesis

• Plant's can't absorb water in darkness

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NGSS.MS-LS1-6

How does the plant obtain carbon dioxide?

• through the glucose in the stem

• through the stomata of the leaf

• through the roots of the plant

• through a chemical reaction in the chlorophyll

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NGSS.MS-LS1-6

Using the diagram, which of the following describes how energy moves through the food chain?

• between producers and consumers, in either direction

• consumers --> producers; in one direction

• producers --> consumers; in one direction

• producers --> consumers; in a cycle

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NGSS.MS-LS1-6

This tortoise is eating cactus on a sunny day. Is carbon moving into the air, moving out of the air, or both?

• Carbon is not moving into the air; it is only moving out of the air.

• With this information, there is no way to know for sure.

• Carbon is only moving into the air; it is not moving out of the air.

• Carbon is moving into the air and out of the air at the same time.

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NGSS.MS-LS1-6

An average sized tree can produce enough oxygen to keep how many people alive?

• 1

• 2-4

• 50-100

• more than 100

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NGSS.MS-LS1-6

A living thing that can make it's own food.

• Plants

• Animals

• Humans

• Sunlight

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NGSS.MS-LS1-6

The mode of nutrition in which organisms make food themselves from simple substances is called( )

• Autotrophic nutrition

• Heterotrophic nutrition

• Saprotrophic nutrition

• All of the above

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NGSS.MS-LS1-6