Ch 8 - Exploring the Forest Flashcards

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1
Q

The forest community lives around and depends on what plants?

A

trees

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2
Q

How does the sapsucker depend on trees?

A

Trees have sap and contain many insects which provide food for the sapsucker.

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3
Q

How has God designed the balance in the forest community?

A

Birds eat many insects that could destroy the plant life and upset the balance of nature.

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4
Q

What kind of life begins a food chain?

A

green plants

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5
Q

The tiniest plants of the forest do not grow from seeds. What do they grow from?

A

spores

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6
Q

What are fungi and bacteria?

A

Fungi and bacteria are plants containing no chlorophyll that must get their food from other plants or animals.

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7
Q

How are fungi and bacteria good for the forest?

A

They decay dead plants and animals, returning the minerals to the soil.

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8
Q

Give an example of a kind of fungus.

A

mushrooms

toadstools

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9
Q

What are the largest plants in the forest?

A

trees

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10
Q

How can you tell the age of a tree?

A

You can tell the age of a tree by counting its annual rings.

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11
Q

What are annual rings?

A

Annual rings are the circles in the wood of a tree trunk. Each circle stands for a year’s growth.

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12
Q

What is sapwood?

A

Sapwood is the lighter rings of wood that carry the sap from the roots to the leaves.

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13
Q

What is heartwood?

A

Heartwood is the dark rings of wood beginning at the center of a tree trunk. Heartwood is very hard and strong.

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14
Q

What do wide annual rings indicate?

A

Wide annual rings mean there was plenty of rain while the tree was growing.

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15
Q

What happens to the annual rings as a tree grows older?

A

The annual rings get thinner.

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16
Q

What are the three main parts of a tree?

A

crown

trunk

roots

17
Q

What is the crown of a tree?

A

The crown is its branches and leaves.

18
Q

What is the trunk of the tree?

A

The trunk is the stem, which moves sap and food up and down the tree.

19
Q

What are the roots of the tree?

A

The roots are the part in the ground. They take in water and minerals from the soil and hold the tree in the ground.

20
Q

What does decay mean?

A

To decay means to break down.

21
Q

What do trees give off?

A

oxygen

22
Q

What substance from the soil is used to make food in green plants?

A

nitrogen

23
Q

Is it true that frost makes the leaves change colour in autumn?

A

No. Frost would kill the leaves, turning them brown.

24
Q

What makes the leaves change colour in autumn?

A

The leaves stop making chlorophyll, which gives leaves their green colour.