Ecology Practice

What are the living parts of an ecosystem called?

• Biotic

• Abiotic

What are the nonliving parts of an ecosystem called?

• Biotic

• Abiotic

Tags

NGSS.MS-LS2-3

What is an endangered species?

• a dead organism

• an organism that already is extinct

• an organism that may become extinct

• an organism that may become threatened

Tags

NGSS.MS-ESS3-4

NGSS.MS-LS2-1

Which organism is always on the first level in a food chain?

• heterotroph

• autotroph

• decomposer

• animal

The greatest amount of energy is found at what level of the food pyramid?

• tertiary consumers

• secondary consumers

• primary consumers

• producers

Tags

NGSS.MS-LS2-3

This must be present in an environment in order for a producer to produce energy.

• parasites

• water

• decomposers

• sunlight

Tags

NGSS.MS-LS1-6

Which organism is usually missing from the food webs?

• consumers

• producers

• decomposers

Tags

NGSS.MS-LS2-3

As energy flows through the pyramid,

• 10% of energy is passed to the next level

• 25% of energy is passed to the next level

• energy remains the same at each level

• amount of energy increases with each level

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Which of the following best describes why decomposers are needed in an ecosystem?

• decomposers break down carbon dioxide for animals

• decomposers release water for plants to absorb

• decomposers release heat from organic matter for plants

• decomposers break down organic matter to release nutrients for plants

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-3

Which organism receives energy as the secondary consumer?

• Hawk

• Bunny

• Tree

Tags

NGSS.MS-LS2-3