Biotic and Abiotic Factors

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

• Sunlight

• Water availability

• Soil composition

• Prey availability

Tags

NGSS.MS-LS2-2

Organize these options into the right categories

Groups:

(a) Biotic Factors

,

(b) Abiotic Factors

• dirt

• grass

• water

• soil

• temperature

• moss

• mushrooms

• wind

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-3

NGSS.MS-LS2-4

How do plants typically compete for light in a forest ecosystem?

• absorb nutrients from the soil

• release toxins into the air

• grow taller to reach sunlight

• store water in their roots

Decomposers, break down dead organisms and recycle ​ (a)  

• nutrients.
• water.
• oxygen.

Tags

NGSS.MS-LS2-3

In a pond ecosystem, what abiotic factor is crucial for the survival of aquatic organisms?

• Availability of prey

• Soil composition

• Temperature of the water

• Amount of rainfall

Tags

NGSS.MS-LS1-5

Which of the following is an example of an abiotic factor affecting a population of fish in a lake?

• Predation by birds

• Availability of oxygen in the water

• Competition for mates

• Availability of nesting sites

Tags

NGSS.MS-LS2-1

What are the Biotic factors in this image?

• There are none
• Sunlight, water, air
• Elephants, plants, trees 
• Air, elephants, humidity

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-2

Check the biotic factors. Select THREE answers.

• A tree

• Bacteria

• Oxygen

• An ant

Tags

NGSS.MS-LS2-2

NGSS.MS-LS2-4