7th Grade MP3 Vocab Quiz

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

• The roots grow away from gravity

• The roots grow toward gravity

• The roots do not detect this stimulus

Tags

NGSS.MS-LS1-5

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

• The stems do not respond to this stimulus

• The stems grow toward light

• The stems grow away from light

Phototropism is a plant's response to -

• Light - an external stimulus
• Light - an internal stimulus
• Gravity - an external stimulus
• Gravity - an internal stimulus

Geotropism is a plant's response to -

• Light - an external stimulus
• Light - an internal stimulus
• Gravity - an external stimulus
• Gravity - an internal stimulus

Identify the tropism in the picture.

• Positive Geotropism

• Negative Phototropism

• Positive Phototropism

• Negative Gravitropism

Tags

NGSS.MS-LS1-5

Stimulus...

• A change that prompts an action-the 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

Tags

NGSS.MS-LS1-8

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

Turgor pressure can help plants move.  Internal water pressure can cause-

• a wilted stem to return to an upright position.
• leaves to fall off a tree in the autumn.
• the roots of a plant to grow downward.
• a seedling to be carried by the wind.

When a seedling emerges upright from the soil, which force is it overcoming?

• Gravity
• Magnetism
• Repulsion
• Heat

Tags

NGSS.3-PS2-1

Geotropism is a force that affects certain organisms.  Which of the following is an example of a plant responding to the external stimulus of gravity?

• A seedling growing towards a sunny window.
• Plant roots growing down into the soil.
• Flowers producing nectar to attract bees.
• A potted plant wilting when it dries out.

Tags

NGSS.MS-LS1-5