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Makovka662 [10]
3 years ago
14

Is a term which describes a membrane that allows only certain molecules to pass through it?

Biology
1 answer:
AveGali [126]3 years ago
5 0
Semipermeable membrane
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Label this diagram with the 3 options
Mrac [35]
The one on Earth’s surface is a meteorite.

The one in earth’s atmosphere is a meteoroid.

And the one in space is a meteor.
8 0
2 years ago
Is ductility considered as a physical property or a chemical property
Elena L [17]

Ductility is a physical property.

A physical property of a material is a property that can be measured or observed without changing the composition of the material.

In this case ductility is a physical property. It is defined as the  property of a material associated with the ability to be drawn or stretched into a wire without breaking. The chemical identity of the material is not affected, that is  it does not change.

Example of ductile materials include gold, silver, copper, erbium, terbium and samarium.

Other examples of physical properties are:

1. Solubility

2. Melting point.

3. Boiling point.

4. Color

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5 0
3 years ago
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What's the difference between nitrification and dentification
Y_Kistochka [10]

Difference between nitrification and dentrification

Explanation:

Nitrification and denitrification are part of the nitrogen cycle

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Denitrification is the process of reduction of nitrate to nitrogen gas by denitrifying bacteria like Pseudomonos, Lactobacillus etc.

Nitrifying bacteria are autotrophs and grows slowly and need aerobic condition.  Denitrifying bacteria are hetertrophs and grows rapidly and need anaerobic conditions.

Nitrification requires a pH of about 6.5 to 8.0; denitrification takes place at 7.0 to 8.5

Nitrification provides soluble nitrates readily available in the soil to be easily absorbed by the roots.

Denitrification processes are used in wastewater or effluent treatment plants.

6 0
3 years ago
How many legs does a starfish have?
MArishka [77]

Answer:

5

Explanation:

7 0
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What type of change alters the form or appearance of matter but does not turn any substance in the matter into a different subst
mestny [16]

Answer:

physical change alert the form of appearance of the matter but does not turn any substance in the matter into a different substance.

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