Biotic and Abiotic factors

Conflict can arise between two species or organisms when they both require the same resource. What scientific term is given to this conflict?

• Competition

• Predation

• Symbiosis

• Mutualism

Tags

NGSS.MS-LS2-4

Which of the following statements best defines biotic factors?

• Biotic factors are the living factors of an ecosystem.

• Biotic factors are the nonliving factors of an ecosystem.

• Biotic factors are neither living nor nonliving factors.

Which of the following best defines abiotic factors?

• Abiotic factors are the living factors of an ecosystem.

• Abiotic factors are the nonliving factors of an ecosystem.

• Abiotic factors are neither living nor nonliving factors.

Tags

NGSS.MS-LS2-3

Factors that affect an ecosystem can be divided into two groups. Complete the sentence with the correct words to describe these factors. Biotic factors are the............. factors within an ecosystem.

• living

• nonliving

• organic

• inorganic

Which of the following abiotic factors, when decreased, would not decrease the rate of photosynthesis?

• Temperature

• Carbon dioxide availability

• Oxygen availability

• Light

Tags

NGSS.MS-LS1-6

Temperature affects the rate of enzyme-controlled metabolic reactions in organisms. Is this an example of an abiotic or biotic factor?

• Biotic

• Both abiotic and biotic

• Abiotic

• Neither abiotic nor biotic

Tags

NGSS.HS-LS2-5

Light intensity affects the growth of plants in an ecosystem. Is this an example of an abiotic or biotic factor?

• Both abiotic and biotic

• Biotic

• Abiotic

• Neither

Tags

NGSS.MS-LS1-5

A group of botanists carry out an experiment into the effect of abiotic factors on the growth of a plant. The same species of plant is placed into different conditions, and the growth is recorded after 60 days.

Their results are shown in the table provided.

Which abiotic factor is limiting plant growth in this experiment?

• Soil pH

• Water

• Carbon dioxide availability

• Temperature

• Oxygen availability

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

The picture provided shows a group of wolves that inhabit Yellowstone National Park. These wolves were introduced into the park to manage the increasing population of elk. What biotic factor do the wolves provide in order to control the population of elk?

• An increase in food availability

• Parasitism

• Competition

• Predation

Tags

NGSS.MS-LS2-4

The picture shows cacti plants in the desert. Cacti have adapted a thick, waxy covering and large, fleshy stems. Which abiotic factor, due to its limitation, has encouraged these adaptations?

• Sunlight

• Predation

• Oxygen

• Carbon dioxide

• Water

Tags

NGSS.MS-LS2-1