TEK 6.12E - Abiotic & Biotic Factors (Part 1)

A hollow, sealed glass sphere contains sand, water, air, algae, and tiny brine shrimp. The sphere is a model ecosystem. Which of these is a biotic factor of this ecosystem?

• air

• algae

• sand

• water

Refer to the diagram. Which list includes abiotic factors only?

• Items A, C, D

• Items B, C, E

• Items A, D

• Items A, B, C, D, E

Tags

NGSS.MS-ESS2-4

NGSS.MS-ESS2-5

Which of these is a biotic factor in a river ecosystem?

• the types of microorganisms that live in the river water

• the amount of soil and other particles carried by the river

• the amount of rain that flows off the land and into the river

• the speed at which the river water flows toward the ocean

Tags

NGSS.MS-LS2-4

NGSS.MS-LS1-5

In many desert ecosystems, days are hot and nights are cold. Water is scarce, so animals seek water wherever possible. The spines of a cactus are actually leaves adapted to conserve water. The cactus plants have also adapted to live in thin, sandy soil. Which of the following is a biotic component of a desert ecosystem?

• the thin, sandy soil

• the wide temperature range

• the scarcity of water

• the spiny cactus leaves

Tags

NGSS.MS-LS2-4

NGSS.MS-LS1-5

Which of the following is a biotic factor in an ocean ecosystem?

• the salt content of the water

• the temperature of the water

• the fish in the water

• the oxygen in the water

Which of the following MOST completely describes the components of a pond ecosystem?

• the soil and water that make up the pond

• the organisms and non-living environment in and around the pond

• the plants and animals that live in and around the pond

• the fish and other aquatic animals in the pond

What terms should replace X and Y in the table?

• elements; compounds

• abiotic; biotic

• microscopic; macroscopic

• natural; man-made

Tags

NGSS.MS-LS2-3

NGSS.MS-LS2-4

NGSS.MS-LS2-1

What abiotic factors might a student study in an ecosystem?

• Herbivores, carnivores, and omnivores

• Algae and invertebrates

• Predators and prey

• Water, temperature, and sunlight

Tags

NGSS.MS-LS2-3

NGSS.MS-ESS2-4

Which of the following best describes the relationship between abiotic and biotic factors in an ecosystem?

• Biotic factors rely on abiotic factors such as water, shelter, and light for survival.

• Abiotic factors rely on biotic factors, such as types of trees, to exist

• Biotic factors only rely on other biotic factors for survival

• There is no relationship between abiotic and biotic factors; they can survive on their own.

Tags

NGSS.MS-LS2-3

NGSS.MS-LS2-4

In the graphic organizer above, what word could we use to replace the word living?

• Abiotic

• Biotic

• Ecosystem

• Organism

Tags

NGSS.MS-LS2-3