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Internal and external stimuli

Authored by Eric Marin

Science

7th Grade

NGSS covered

Used 11+ times

Internal and external stimuli
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24 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Jackson is around his friend who is constantly sick. Jackson begins coughing and sneezing the next day at school. What is the possible stimulus and response?

Internal stimulus is coughing, the response is getting sick
External stimulus is coughing, the response is getting sick
Internal stimulus is germs/bacteria, the response is coughing
External stimulus is germs/bacteria, the response is coughing

Tags

NGSS.MS-LS1-8

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

As the season turns from winter to spring, what is the most likely response that a bear's body has to the changing season?

The bear stores more body fat to maintain the necessary body heat and more nutrition because there may be less prey.
The bear produces less fur and begins shedding to allow its body temperature to adjust the warming climates
The bear's fur becomes darker so it is easier to hide from its prey
The bear begins to store food and find shelter for hibernation

Tags

NGSS.MS-LS2-1

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

Which of the following best explains the external stimulus that is causing the response in the picture?

The tree, stimulated by the weather, is responding by growing towards the sky
The tree, stimulated by the sunlight, is responding by growing towards the sun
The tree, stimulated by the piano, is responding by growing through the piano.
The tree, stimulated by the lack of water, is responding by growing at a slower rate

Tags

NGSS.MS-LS1-5

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Many birds migrate long distances when the seasons change. Which of the following is an environmental stimulus that would signal to the birds the changing seasons?

Changes in the length of daylight
Increases in the population of edible plants
Decreased number of offspring per hatching event
Increase in annual precipitation levels

Tags

NGSS.MS-ESS1-1

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Homeostasis...

A stimulus from inside an organism
How an organism reacts to a change
The ability to maintain a stable internal environment (type of equilibrium or balance)
A stimulus from outside an organism

Tags

NGSS.HS-LS1-3

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Stimulus...

A change that prompts an action-then cause

The ability to maintain a stable internal environment (type of equilibrium or balance)

How an organism reacts to a change and results in a change in behavior- the effect

Constant and balanced environment

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Roots grow downward in the soil in response to-

gravity
sunlight
water 
wind

Tags

NGSS.4-LS1-1

NGSS.5-PS2-1

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