Characteristics of Life

A plant growing towards the light is an example of 

• reproduction.

• responding to a stimuli.

• metabolism.

• homeostasis.

Answer explanation

A plant growing towards the light demonstrates phototropism, which is a response to a stimulus (light). This behavior shows how organisms react to environmental changes, making 'responding to a stimuli' the correct choice.

Tags

NGSS.MS-LS1-5

Match the following biological processes with their correct examples.

• A human maintaining body temperature

• homeostasis.

• A plant producing seeds

• growth and development.

• A maggot changing into a fly

• evolution.

• Peppered moths changing color over generations

• reproduction.

Tags

NGSS.MS-LS1-5

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

• compensating

• homeostasis

• balancing

• routine

Answer explanation

The maintenance of an organism's internal environment is known as homeostasis. This process ensures stability and balance within the body, making 'homeostasis' the correct answer.

Tags

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Jan is feeling hungry and eats to stabilize her sugar levels.

• use energy

• homeostasis

• respond to stimuli

• growth

Answer explanation

Jan eats to stabilize her sugar levels, which is a process of maintaining homeostasis. Homeostasis refers to the body's ability to regulate internal conditions, such as blood sugar, to keep them stable.

The "cause" for something to happen is the

• response

• effect

• stimulus

• homeostasis

Answer explanation

The 'cause' for something to happen is referred to as the stimulus. It triggers a response or effect, making it the correct choice in this context.

Tags

NGSS.MS-LS1-8

What is an adaptation?

• A feature or behavior that helps an animal survive.

• The food that an animal eats.

• How energy moves in a food web.

• How animals evolve throughout time.

Answer explanation

An adaptation is a feature or behavior that enhances an animal's ability to survive in its environment. This includes physical traits or learned behaviors that improve chances of survival and reproduction.

Tags

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Green plants produce their own food through the process of photosynthesis.

• All living things use energy

• All living things contain cells

• All living things maintain homeostasis

• All living things grow

Answer explanation

Green plants use energy from sunlight to produce food through photosynthesis, highlighting that all living things, including plants, require energy to sustain life.

Tags

NGSS.MS-LS1-6

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An amoeba is a unicellular organism. Which characteristic of life is this?

• All living things use energy

• All living things contain cells

• All living things respond to their environment

• All living things grow

Answer explanation

An amoeba is a unicellular organism, meaning it is made up of a single cell. This directly relates to the characteristic of life that states all living things contain cells, making it the correct choice.

Tags

NGSS.MS-LS1-1

Rocks are not living because

• they never move

• they aren't needed for humans

• they are not made of cells

• they don't break down

Answer explanation

Rocks are not living because they are not made of cells. Living organisms are characterized by cellular structure, which rocks lack, making this the correct reason for their non-living status.

Tags

NGSS.MS-LS1-1

A cactus shows all of the following characteristics EXCEPT ____________. 

• need water

• growth 

• movement

• respond to environment 

Answer explanation

Cacti do not exhibit movement like animals do. They are stationary plants that grow and respond to their environment, but they do not move from one place to another, making 'movement' the correct answer.

Tags

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