External and Internal Stimuli Quiz

Which action describes a response to internal stimuli?

• writing a thank you note

• running at the sight of a wild lion

• drinking when you are thirsty

• catching a ball at a baseball game

Tags

NGSS.MS-LS1-8

Based on the context, stimulus refers to

• the temperature of the body

• food that gives your body energy

• a thing or event that causes a reaction

• outside reactions that monitor your bodily systems

Tags

NGSS.MS-LS1-8

A houseplant is placed on a window sill that gets direct, bright sunlight every afternoon. The plant starts to grow toward the window. What kind of response is described by the situation?

• A negative response to a stimulus

• A learned behavior

• Gravitropism

• Phototropism

Tags

NGSS.MS-LS1-5

What can the reader conclude about homeostasis?

• Without receptors, an organism cannot maintain homeostasis

• Plants only need to respond to internal stimuli to maintain homeostasis

• Learned behaviors are not important for an organism to maintain homeostasis

• Only multicellular organisms maintain homeostasis

Tags

NGSS.MS-LS1-8

What is the best summary of this passage?

• Stimuli trigger responses in organisms that allow them to maintain constant internal conditions through homeostasis.

• Phototropism is a plant's response to turn toward light. Gravitropism is a plant's response to grow upward against gravity.

• An external stimulus comes from outside the organism. Animals respond to stimuli through learned behaviors and instinct.

• There are internal stimuli as well as external.

Tags

NGSS.MS-LS1-8

Which of the following is a response to smelling food?

• Excessive sweating

• Rapid blinking

• Increased hunger

• Sensitivity to sound

Tags

NGSS.MS-LS1-8

Pain is a stimulus in animals that leads to responses which help the animal to -

• find food in the habitat.

• recuperate after exercise.

• avoid harmful situations.

• fight serious infections.

Tags

NGSS.MS-LS1-8

While sitting in a room, a person notices that the temperature has become uncomfortably warm. The body will respond by -

• shivering.

• sweating.

• twitching.

• vomiting.

Tags

NGSS.MS-LS1-8

A predator chases a prey animal. The prey is likely experiencing all of the following EXCEPT -

• rapid heartbeat.

• dilated pupils.

• increased sweating.

• onset of fever.

Tags

NGSS.MS-LS1-8

Which of the following is a likely cause of vomiting?

• Ingesting spoiled food

• Cold temperatures

• Lack of water

• Excessive sunlight