_____ cells expand and contract to move the body.

omeli [17]

Forests play an important role in the economic development of a country. They provide several goods which serve as raw materials for many industries. Wood grown in forests serves as a source of energy for rural households.

Most of the world’s paper is made from wood and one rather reliable index to the degree of economic development of a country is its per capita consumption of paper. As an economy develops economically, paper is used as packaging material, in communications and in scores of other uses. No really satisfactory substitute for paper exists for many of its uses.

While it has long been recognized that forests play many roles in the economic development of a country in addition to providing wood fiber for many uses, the non-wood outputs of forests are coming increasingly to be recognized and valued everywhere in the world. Forests have watershed values especially in areas with fragile and easily eroded soils; tree cover may be highly valuable simply as protection to the watershed.

Forests are valued as a place for outdoor recreation. The kinds of forests most valuable for outdoor recreation are not always the same as the kinds most valuable for wood production and vice versa. The dense forest with trees closely spaced to take full advantage of the sunlight, moisture and fertility to grow wood, is often less attractive to the recreationist than a more open forest.

Forests are the home for many species of wildlife including mammals, reptiles and birds. Some of these forms of wildlife are clearly valuable to man. Ecologists have been much disturbed at the reduction in wildlife numbers, sometimes to the point of extinction, as tropical forests are cleared.

please mark as brainliest!!

3 0

3 years ago

The solute potential of a plant cell is -10 bar, and its pressure potential is 3. The plant cell is placed into a solution with

Nesterboy [21]

The water potential of the cell would be -7 bar and thus, water will move from the cell to the surrounding solution.

Recall that:

Water potential = pressure potential + solute potential

For the plant cell, solute potential = -10, pressure potential = 3

Water potential of the cell = 3-10

= -7 bar

The water potential of the cell is -7 bar while that of the surrounding solution is -10 bar. Thus, the cell has a higher water potential than the surrounding solution.

Recall that water usually moves from the region of high to the region of low water potential. Therefore, water will move from the cell to the surrounding solution.

More on water potential can be found here: brainly.com/question/23855783

6 0

2 years ago

Which adaptation is the likely result of convergent evolution?

elixir [45]

Answer:

Changing of color to seem like camouflage

Explanation:

5 0

2 years ago

What treatment is being compared to the control in the experiment? what treatment is being compared to the control in the experi

stepan [7]

The correct answer is: the treated glioblastoma cells were cultured in the presence of an inhibitor from umbilical cord stem cells, but the control cells were cultured without the inhibitor.

It has been shown that treatment with injected umbilical cord stem cells has strong therapeutic effects on glioma models. Those cells produce anti-tumour substances, with inhibitory effects.

Control group does not include the treatment in order to observe the treatment.

7 0

2 years ago

Which tissue acts as a cushion and protects the body?

butalik [34]

Its .. Nervous tissues i think i still remember cause i had this question on an exam and i got it right lol ..

- But hoped i helped you out any .. if anymore help is need just ask me then .

6 0

2 years ago

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