Abiotic and Biotic Factors

Abiotic factors that characterize a forest ecosystem include

• light and biodiversity

• temperature and amount of available water

• types of producers and decomposers

• pH and number of heterotrophs

Tags

NGSS.MS-LS2-3

In the ocean, the growth and survival of seaweed, small fish, and sharks depends on the abiotic factors such as

• sunlight, temperature, and minerals

• sunlight, pH, and type of seaweed

• number of decomposers, carbon dioxide, and nitrogen

• number of herbivores, carbon, and food

Tags

NGSS.MS-LS2-1

Plants are green because they contain the protein chlorophyll. A bucket was left on the lawn for one week. When the bucket was removed, the grass under the bucket had turned from green to a yellowish white color. This change is due to the interaction between the grass and

• decomposer organisms in the soil, an abiotic factor

• the amount of sunlight, and abiotic factor

• increased moisture under the bucket, and abiotic factor

• the metal composition of the bucket, a biotic factor

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-4

The ability to grow in size is a characteristic of living organisms. Although an icicle may grow in size over time, it is considered nonliving because there is

• an increase in matter, but no increase in the number of icicles

• an interaction between the icicle and the environment

• no way for the icicle to move away from heat

• no metabolic activity present

Tags

NGSS.MS-LS1-5