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LUCKY_DIMON [66]
3 years ago
14

What kinds of substances cause the destruction of ozone?

Biology
2 answers:
SSSSS [86.1K]3 years ago
5 0

Answer:

B

Explanation:

Nikitich [7]3 years ago
4 0

Answer:

Substance that contain chlorine and bromine

Explanation:

B cause chlorofluorocarbons is made of that thing

Brainliest would be appreciated :))

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Choose the correct sequence of the prokaryotic operon. A) gene, operator, promoter B) promoter, operator, gene C) operator, prom
Harrizon [31]

Answer:

The correct answer is option B, that is, promoter, operator, gene.

Explanation:

In a prokaryote, just in front of the operator, the promoter is located, and just in front of the structural genes, the operator is located. All these in combination give rise to an operon.  

Any gene, which codes for an enzyme or a structural protein is termed as a structural gene, in the lac operon, a structural gene codes for three distinct kinds of enzymes. A short sequence of DNA is situated just in front of the structural gene, which is known as the operator. An operator functions as a switch for transcription, that is, it monitors whether the process of transcription will take place or not.  

Just in front of an operator, a sequence of a promoter is present, and for the transcription and translation of all the structural genes, the RNA polymerase needs to combine first with the promoter. In case, if no transcription is to take place, then the operator allows the repressor to bind with it and prevent the attachment of RNA polymerase with the promoter. Hence, the correct sequence of a prokaryotic operon is a promoter, operator, and gene.  

4 0
2 years ago
Which units are used to measure both velocity and speed? Check all that apply. m/s d/t km/h mph
stiv31 [10]
<span>m/s            km/h                mph

Hope this helps xox :)</span>
6 0
3 years ago
Read 2 more answers
A patient's HDL, LDL, and triglyceride levels are 62, 77, and 60, respectively. What is the patient's total cholesterol score? S
Len [333]

Answer:

Total cholesterol score is 199

199 is high cholesterol score especially as it very close to 200. The patient should adopt diets that do not include high cholesterol food

Explanation:

a. Firstly, we want to calculate the patient’s total cholesterol score.

To get this, we use a mathematical approach.

Mathematically;

the total cholesterol score = HDL + TDL + Triglyceride = 62 + 77 + 60 = 199

The patient’s total cholesterol score is 199

b. As a doctor, I will advice the patient on the status of these measurements. Using the scale of cholesterol level, a measurement of total cholesterol = 200 represents a high cholesterol level. Since 199 is very close to 200, the patient is at a risk of high cholesterol levels and thus needs a dietary change.

8 0
3 years ago
What two types of organic molecules make up carbohydrates?
Bingel [31]

Answer:

carbon and hydrogen

Explanation:

Have a nice day

3 0
2 years ago
Can someone please help me?
Romashka-Z-Leto [24]
Carbon sinks (the ocean is actually the largest carbon sink)
5 0
3 years ago
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