Biogeochemical Cycles

Biogeochemical cycles are pathways in which matter and elements cycle through which of the following components of an ecosystem?

• abiotic components

• biotic components

• abiotic and biotic components

• none of the above

Tags

NGSS.MS-LS2-3

NGSS.MS-LS1-6

Matter is recycled in an ecosystem.

• True

• False

Tags

NGSS.MS-LS2-3

Carbon dioxide is taken from the atmosphere by ________.

• plants for photosynthesis

• plants for cellular respiration

• humans when burning fossil fuels

• decomposition of organic plants and animals

Tags

NGSS.MS-LS1-6

Which two processes release carbon dioxide into the atmosphere?

• photosynthesis and cellular respiration

• cellular respiration and burning fossil fuels

• burning fossil fuels and decompositon

• photosynthesis and decomposition

Tags

NGSS.MS-LS2-3

NGSS.MS-LS1-6

Which organism is necessary for nitrogen to be fixed out of the atmosphere and used by living things?

• plants

• animals

• fungi

• bacteria

Tags

NGSS.MS-LS2-3

How do animals get the nitrogen that they need to create proteins and nucleic acids?

• They create it.

• They absorb it from the atmosphere.

• They consume other living things.

• They assimilate it from teh soil.

Tags

NGSS.MS-LS2-3

NGSS.MS-LS2-1

The phosphorus cycle does not travel into ________.

• plants

• animals

• the atmosphere

• water

Tags

NGSS.MS-LS2-3

Phosphorus and nitrogen are added to plants using _______.

• fertilizers

• pesticides

• herbicides

• fungicides

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

Which process releases water from the stomata of plants?

• evaporation

• transpiration

• condensation

• precipitation

Tags

NGSS.MS-LS2-3

NGSS.MS-ESS2-4

Most of the water on earth is found where?

• ice caps

• oceans

• streams

• aquifers

Tags

NGSS.MS-ESS2-4