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Stimulus Response

Total questions: 23

Worksheet time: 12mins

Name
Class
Date
1.

What type of stimulus?

The smell of pizza

a)

Internal

b)

External

2.
What type of stimulus?
Loud fire alarm
a)
Internal
b)
External
3.

What type of stimulus?

Having a stomach virus

a)
Internal
b)
External
4.
What type of stimulus?
Lights suddenly turn off
a)
Internal
b)
External
5.
What type of stimulus?
Touch a hot skillet
a)
Internal
b)
External
6.

What type of stimulus?

Having the urge to urinate

a)
Internal
b)
External
7.

What type of stimulus?

Seeing a spider

a)
Internal
b)
External
8.

Plants can detect gravity and respond to it. How do the roots respond to gravity?

a)

The roots grow away from gravity

b)

The roots grow toward gravity

c)

The roots do not detect this stimulus

9.

Plants can detect light and respond to it. How do the stems and leaves respond to light?

a)

The stems and leaves do not respond to this stimulus

b)

The stems and leaves grow toward light

c)

The stems and leaves grow away from light

10.

Vines can detect touch and respond to it. What tropism is this?

a)

Thigmotropism

b)

Hydrotropism

c)

Phototropism

d)

Geotropism

11.
Phototropism is a plant's response to -
a)

Light

b)

Gravity

c)

Water

d)

Touch

12.
Geotropism is a plant's response to -
a)

Light

b)

Water

c)

Touch

d)

Gravity

13.

Something that causes a response is called a

a)

response

b)

stimulus

c)

touch

d)

survival

14.

Hunger, thirst, fever or vomiting are what type of stimuli?

a)

external

b)

internal

15.

When roots of a plant grow downward in response to the stimulus of gravity it is called...

a)

phototropism

b)

geotropism

c)

thigmotropism

d)

homeostasis

16.

A zebra running away after seeing a lion would be

a)

tropism

b)

stimulus

c)

fight or flight response

d)

hunger response

17.

An example of an internal stimuli would be...

a)

A rabbit sees a fox is about to attack

b)

A rabbit is hungry

c)

A rabbit hears a shotgun go off

18.

An example of an external stimulus would be...

a)

You want a drink of water

b)

You are hungry

c)

You feel nauseated

d)

You get cold when you walk outside

19.

Is the stimulus external or internal....A loud noise?

a)

Internal

b)

External

20.

Identify the tropism in the picture.

a)

Hydrotropism

b)

Phototropism

c)

Gravitropism

d)

Thigmotropism

21.

Identify the tropism in the picture.

(The blue area is water. )

a)

Phototropism

b)

Thigmotropism

c)

Hydrotropism

22.

Identify the tropism in the picture.

a)

Thigmotropism

b)

Phototropism

c)

Geotropism

d)

Hydrotropism

23.

Identify the tropism in the picture.

a)

Thigmotropism

b)

Phototropism

c)

Geotropism

d)

Hydrotropism