How do plants respond to their environments? | Baamboozle - Baamboozle

English 16 Public

p. 176-177

Study Slideshow

What is a stimulus?

SOMETHING in an ENVIRONMENT CAUSING a LIVING THING to RESPOND

25

Respond means to ______________.

react

5

How does a plant respond to a stimulus?

It changes it's direction or pattern of growth

15

Name three plant stimulus.

Light, water, and gravity

15

How do plants respond to light?

They grow toward the source of light

15

How do plants respond to water?

Their roots grow toward the water source.

15

Most roots grow ______________, the direction of gravity

downward

5

Most stems grow ___________, away from gravity.

upward

5

What is a tropism?

The RESPONSE OF A PLANT to something in its environment

20

The ____________ of plants to light, water, and gravity are tropisms.

responses

5

Plants also show tropisms to _______________ and _______________.

chemicals ; heat

10

What causes a tropism?

A chemical all plants use to grow.

20

What are some plant adaptations?

Soft tissue, thick waxy coverings, losing leaves, bright colored flowers

25

Why do plants need adaptations?

to save water, and attract pollinators

15

Why do most trees in temperate forests lose their leaves in winter?

to protect them from drying out in the cold winter air

15

How does a tree without leaves make food?

It can't. It uses stored food it starts making in spring when it has leaves

20