Systems Interacting: Stimulus and Response

Which of the following best describes a stimulus?

• A chemical reaction

• A signal in the environment that causes a response

• A type of cell

• A form of energy

Tags

NGSS.MS-LS1-8

When senses detect a stimulus, they (a)   .

• They produce antibiotics
• They send messages to the brain
• They break down food
• They store energy

Tags

NGSS.MS-LS1-8

Which body system is primarily responsible for processing sensory information?

• Digestive system

• Nervous system

• Circulatory system

• Respiratory system

Tags

NGSS.MS-LS1-8

Which of the following is an example of a response to a stimulus?

• Breathing

• Heartbeat

• closing your eyes in bright light

• Digesting food

Tags

NGSS.MS-LS1-8

Discuss the role of sensory receptors in maintaining homeostasis.

• Sensory receptors disrupt homeostasis by sending false signals.

• Sensory receptors help maintain homeostasis by detecting changes in the environment and signaling the brain to initiate appropriate responses.

• Sensory receptors have no role in homeostasis.

• Sensory receptors only function during emergencies.

Tags

NGSS.MS-LS1-8

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

• compensating

• homeostasis

• balancing

• routine

Is the stimulus internal or external? Feeling hungry

• Internal

• External

Identify the stimulus..."A loud noise causes you to cover your ears"

• A loud noise

• You cover your ears

Tags

NGSS.MS-LS1-8

Identify the stimulus..."A person shivers because it is cold outside"

• Cold temperature

• A person shivers

Identify the response..."A squirrel scratches at a flea bite"

• A flea bite

• A squirrel scratches