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Tree Physiology and Water Runoff

Tree Physiology and Water Runoff

Assessment

Interactive Video

Biology, Science, Geography

9th - 10th Grade

Practice Problem

Hard

Created by

Patricia Brown

FREE Resource

The video discusses ornamental cherry trees, focusing on lenticels that facilitate respiration. It explains how water runoff can lead to algae and moss growth, potentially blocking lenticels. Some trees can shed bark to expose new lenticels. The video also covers dissolved organic carbons creating soapy effects in water and the acidity of tree bark, particularly in oak and lime trees, due to tannins.

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9 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the primary function of lenticels on an ornamental cherry tree?

To store nutrients

To facilitate air exchange

To protect against pests

To absorb water

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How does water runoff affect the lenticels on a tree?

It causes them to dry out

It blocks them with algae and moss

It enhances their function

It has no effect

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is one way trees can respond to blocked lenticels?

By absorbing more water

By increasing root size

By producing new growth

By shedding leaves

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the composition of the runoff that forms a soapy effect?

Pollen and dust

Dissolved organic carbons

Minerals from the soil

Insect secretions

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Why is the bark of oak trees particularly acidic?

Due to low sunlight exposure

Because of the presence of tannins

Due to high moisture content

Because of insect activity

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What industry historically used tannins found in oak bark?

Pharmaceutical

Construction

Tanning

Textile

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What effect does the shape of lime trees have on water runoff?

It absorbs all the water

It creates natural runoff channels

It causes water to pool at the top

It prevents runoff

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