Matter and Energy in Ecosystems

The process by which plants and other producers use energy from sunlight to change carbon dioxide and water into oxygen and glucose.

• cellular respiration

• mitosis

• metamorphasis

• photosynthesis

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Scientists are studying photosynthesis in a forest ecosystem that has plants, animals, and decomposers (which consume dead things). Which group or groups of organisms in the forest carry out photosynthesis?

• 
  all organisms in the forest

• 
  animals and decomposers

• 
  plants and decomposers

• 
  plants

Tags

NGSS.MS-LS1-6

Matter that make up the nonliving parts of an ecosystem, such as air and water

• abiotic

• biotic

• composer

• energy storage molecules

Tags

NGSS.MS-LS2-3

An organism that gets energy storage molecules by breaking down dead matter

• primary consumer

• secondary consumer

• producer

• decomposer

The amount of matter in an ecosystem is always ​ (a)   . It just changes forms and is recycled.

• constant

• decreasing

• increasing

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Giant pandas eat bamboo plants in the mountains of China. The number of energy storage molecules has decreased in both the bamboo and the pandas. What has happened to the amount of carbon in the bamboo and the pandas? The amount of carbon in the bamboo and pandas . . .

• has not changed.

• is not related to the number of energy storage molecules.

• has increased.

• has decreased.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-3

NGSS.MS-LS2-4

In order for matter to recycle and return in the food chain shown here, what must be present at level A?

• Tertiary consumers

• Decomposers

• Producers

• Secondary consumers

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Matter that makes up the living and dead (once living) organisms in an ecosystem.

• abiotic

• mitosis

• biotic

• photosynthesis

Tags

NGSS.MS-LS2-3

The part of the cell where photosynthesis happens

• mitochondria

• nucleus

• ribosome

• chloroplast

Tags

NGSS.MS-LS1-6

An organism that needs to eat in order to get energy storage molecules.

• producer

• consumer

• decomposer

• dead matter