Nes Biology

Which statement describes an autotroph?

• It is an organism that makes its own food.

• It is an organism that eats other organisms.

• It is an organism that eats decaying matter.

• None of the above.

Which situation is a biotic factor operating within an ecosystem?

• the kind of climate in a given region

• carnivores that eat other animals

• the concentration of hydrogen gas in the air

• the rate of water flow in a body of water

Tags

NGSS.MS-LS2-4

Which of these phrases describes the biotic factors of an ecosystem?

• the number of individual organisms in each trophic level of an ecosystem

• any living part of an environment

• an organism that eats only meat

Tags

NGSS.MS-LS1-4

What is composed of several food chains in an ecosystem that intersect and depend on one another?

• niche

• feeding level

• energy pyramid

• food web

Tags

NGSS.MS-LS2-3

Weather (such as rain) and soil conditions are considered to be part of the ____________ factors of an ecosystem.

• biotic

• antibiotic

• abiotic

• biomass

Tags

NGSS.MS-LS2-4

All the nonliving things in an environment are called the ________ factors.

• abiotic

• biotic

• ecological

• inorganic

A certain plant needs moisture, carbon dioxide, oxygen light, and minerals to survive. This scenario shows that a living organism depends on

• biotic factors

• abiotic factors

• symbiotic relationships

• carnivore-herbivore relationships

Tags

NGSS.MS-LS2-1

During a long period when there is no rainfall, a mountain lion may temporarily leave its usual hunting territory to drink from a farm pond. To what is this behavior probably due?

• its need to find different foods to eat

• the change in an abiotic factor in its environment

• its need to find a new habitat

• the change in a biotic factor in its environment

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

What is an example of a biotic factor?

• water

• grass

• soil

Tags

NGSS.MS-LS1-4

NGSS.MS-LS2-4

The maintenance of an organism’s internal environment is called:

• compensating

• homeostasis

• balancing

• routine