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dangina [55]
3 years ago
8

How are explanations formed in science?

Biology
1 answer:
ycow [4]3 years ago
4 0
Through experiments and studies
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What process exerts the pull on water molecules that is relayed from leaf to root via cohesion? what process exerts the pull on
marissa [1.9K]

Evaporation of the water is the process that exerts the pull on water molecules that is relayed from leaf to root via cohesion. The pressure of the water present in the leaves becomes less due to evaporation of water. The pressure of water in the roots and lower part of the shoot is high. This gradient of pressure creates a pull on the water molecules present in the roots to move upwards to the leaves to occupy the vacant space. The whole process is called transpiration.

3 0
2 years ago
A cellular structure that can be found in each type of cell that is unique to each type of cell, but that has a similar function
34kurt

Answer

Complex barrier to the flow of substances out of the cells,and restrictions to inflow of unwanted substances into the cells. The hydrophobic and hydrophilic nature of the cell membrane controls the entry of substances from the extracellular medium into the intracellualr. In addition the polarity restricts certain substance movement across the walls.

Serve as the selective channels  for the  influx of certain substances into the cells, and the out flux of wastes.This is through ion channels for the movements of ions across.

Provide insulation to the cells,to maintain the constant internal temperature,this is through the presence of lipids as( Phospholipids and cholesterol).The latter prevent the clogging of the lipids in the cell membrane therefore preventing frozen up of the cell membrane,providing insulation.

Separation of metabolic process in the cell.

Explanation:

Cell membrane-This is present in all cells.But the variation of its constituents makes it unique to each cell. Although it performs the same role, the location and role the cells it bounded, reflects its  constituents, it is made up of lipids, carbohydrate, protein and cholesterol

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3 years ago
A bar magnet is dipolar. This means it has ___ poles.
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The answer is C) Two. Dipolar means there are two magnetic poles charging with the same magnitude but opposite polarity.
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The answer is absorbing dead or decaying organisms
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Mary travelled 70 miles/hour due north.
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It's D, velocity

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