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Maksim231197 [3]
3 years ago
6

What is plastic made of?​

Biology
2 answers:
Anna [14]3 years ago
7 0

Answer:

Plastic is made of raw materials like coal, cellulose, natural gas, oil or plants, etc

Chemically it contains elements such as carbon, hydrogen, oxygen, nitrogen, chlorine, and sulfur. Plastics consist of polymer chains, which are just large molecules that are made up of many identical small particles that are strung together like a chain.

Sauron [17]3 years ago
5 0

Answer:

Plastics are made from natural materials such as cellulose, coal, natural gas, salt and crude oil through a polymerisation or polycondensation process. Plastics are derived from natural, organic materials such as cellulose, coal, natural gas, salt, and crude oil.

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Animals respond to threats in their environment by attacking or escaping. Either response is the result, mostly, of interactions
kifflom [539]

Answer:

Animal and humans

if im right pls give brainliest

Explanation:

3 0
2 years ago
A template strand of DNA contains nucleotides in the following proportions: 14% adenine
MAXImum [283]

Answer:

The proportions of  nucleotides in the newly formed complimentary strand will be:

14% Thymine (T), 33% Adenine (A), 21% Guanine (G), 32% Cytosine (C).

Explanation:

In a double stranded DNA, the nucleotides of one strand binds with nucleotides of another strand through hydrogen bonds.

Adenine binds with thymine by two hydrogen bonds (A=T) and guanine binds with cytosine by three hydrogen bonds (G≡C).

So, the complimentary strand must have

  • thymine equal to the amount of adenine in template strand.
  • adenine equal to the amount of thymine in template strand.
  • guanine equal to the amount of cytosine in template strand.
  • cytosine equal to the amount of guanine in template strand.
3 0
1 year ago
Because carbon can bond to one another, what shapes can they form?
faltersainse [42]
Correct answer - Tetrahedral, planar or flat.

Why? - When carbon forms single bonds with other atoms, the shape is tetrahedral. When two carbon atoms form a double bond, the shape is planar, or flat. Single bonds, like those found in ethane, are able to rotate.
8 0
2 years ago
The cells in your body need nutrients and other materials to stay alive. To be used by your cells, the materials must be
Hunter-Best [27]
B. eukaryotic is the answer. 
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3 years ago
How does rough ER from smooth ER?
irinina [24]

Answer:

Rough endoplasmic reticulum differ from smooth endoplasmic reticulum by the presence and absence of ribosomes in their surface.

Explanation:

Rough endoplasmic is named so because RER contain ribosomes at their surface and due to the presence of ribosomes rough endoplasmic reticulum play an importnt role in protein synthesis or translation.

 Whereas smooth endoplasmic reticulum does not contain any ribosome in its surface.smooth endoplasmic reticulum helps in the biosynthesis of lipid and steroids along with detoxification of toxic compounds.

3 0
3 years ago
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