Ecology Key Concept 1

Green plants and algae make their own food through photosynthesis. What is photosynthesis?

• a cell process that uses energy from sunlight to convert water and oxygen into food

• a cell process that uses energy from sunlight to convert water and glucose into food

• a cell process that uses energy from sunlight to convert water and chlorophyll into food

• a cell process that uses energy from sunlight to convert water and carbon dioxide into food

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NGSS.MS-LS2-3

NGSS.MS-LS1-6

Which is the MOST accurate description about how green plants and animals get food?

• Both green plants and animals get food by making it.

• Both green plants and animals get food by ingesting it.

• Green plants get food by making it, while animals ingest it.

• Green plants get food by ingesting it, while animals make it.

Which component is missing from the chemical equation for photosynthesis?carbon dioxide + water + light energy --> ? + oxygen

• hydrogen

• chlorophyll

• glucose

• light energy

How do animals obtain nitrogen stored in plants?

• Denitrifying bacteria

• Nitrogen fixing bacteria

• Directly from the atmosphere

• They eat the plants

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NGSS.MS-LS2-3

_______________________ converts nitrogen into a form that plants can absorb.

• Denitrifying bacteria

• Nitrogen fixing bacteria

• Decomposers

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NGSS.MS-LS2-3

Which of the following processes play a major role in the carbon dioxide-oxygen cycle? Mark all that apply.

• photosynthesis

• cellular respiration

• decomposition

• nitrogen fixation

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NGSS.MS-LS2-3

NGSS.MS-LS1-6

Ecosystems possess..

• only living components
• only non-living components
• both living and non-living components

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NGSS.MS-LS2-3

Decomposers break down detritus, also known as...

• dead organic matter
• inorganic matter
• living matter
• non-living matter

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NGSS.MS-LS2-3

In the carbon cycle, organisms exchange ___ with the atmosphere

• glucose
• carbon dioxide
• oxygen
• nitrogen

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NGSS.MS-LS2-3

NGSS.MS-LS1-6

Plants rely heavily on ____ in the nitrogen cycle to incorporate nitrogen into organic compounds

• bacteria
• viruses
• fungi
• oxygen

Tags

NGSS.MS-LS2-3