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Vlada [557]
2 years ago
13

In the greenhouse effect, far infrared radiation is blank Earth's surface and absorbed and reemitted by blank gases in the atmos

phere. These gases have blank in concentration over the past century.
Multiple choice answers:
1st blank: emitted from, absorbed by or emitted and absorbed by.

2nd blank: some or all

3rd blank: decreased, increased or been unchanged
Biology
1 answer:
Tom [10]2 years ago
6 0

In the greenhouse effect, far infrared radiation is emitted from the Earth's surface and absorbed and reemitted by some gases in the atmosphere.

These gases have increased in concentration over the past century.

<h3>What is the greenhouse effect?</h3>

The greenhouse effect refers to the effect that occurs due to certain gases present in the atmosphere which serves as blanket by preventing escape of heat from the earth.

Greenhouse gases include most especially carbon dioxide.

In the greenhouse effect, far infrared radiation is emitted from the Earth's surface and absorbed and reemitted by some gases in the atmosphere.

These gases have increased in concentration over the past century.

Learn more about greenhouse effect at: brainly.com/question/17023405

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Describe the key steps in the semiconservative replication of DNA.
natka813 [3]

Answer:

Semi-conservative replication is meant for the description of DNA replication and it i s called so because parent DNA helix produces two copies of original DNA, one of which consist of original DNA.

The three main steps in DNA replication includes Initiation, Elongation and Termination.

In the initiation phase, replication begins at origin of replication where helicase enzyme breaks the hydrogen bonds between base pairs and tends to unwind the double helix where the topoisomerase stabilizes the newly formed single strand DNA. DNA polymerase allows elongation to occur in leading direction and catalyses the addition of new nucleotide to new single strands. short sequences of RNA called primers paired to template strands with the help of primase. replication of both strands occurs at the same time one in continuous (3'-5') and other in discontinuous (5'-3') direction, which are called leading strands. new nucleotides added in 3' end and moving to replication fork while discontinuous synthesis occur on parent strand (5'-3') called lagging strand and completed in segments called okazaki fragments. Then primase add primers ahead at 5' end of the lagging strand. DNA  polymerase ||| adds short sequences of nucleotides to the primer. During termination, exonuclease replaces DNA primer and DNA nucleotide and DNA ligase helps in making bonding between fragments and replaced nucleotide. Another exonuclease helps in proofreading the newly formed DNA and corrects the errors in sequences. At the end of the parent strands, telomeres are present which keeps on catalyzing by telomerase and completes, the formation of copies of parent DNA.

7 0
3 years ago
What is the "central dogma"?
Zepler [3.9K]
Molecular biology describes the two-step process, transcription and translation, by which the information in genes flows into.
5 0
3 years ago
Which of these practices best qualifies as a pseudoscience?
Masteriza [31]

The practice that best qualifies as a pseudoscience is using the smells of different oils to help a person feel energized (option A).

<h3>What is pseudoscience?</h3>

Pseudoscience is any body of knowledge that purports to be scientific or to be supported by science but which fails to comply with the scientific method.

Common examples of pseudoscience are as follows:

  • The belief that two people send cues to one another based on their body positioning.
  • The belief that a person's personality can be seen through their handwriting

According to this question, the act of using the smells of different oils to help a person feel energized is an example of pseudoscience because it does not comform to the scientific method.

Learn more about pseudoscience at: brainly.com/question/12257058

#SPJ1

3 0
1 year ago
Which substance on the plasma membrane helps identify chemical signals from outside the cell?
cluponka [151]

Answer:

<em><u>The correct option is A) carbohydrate chain</u></em>

Explanation:

The carbohydrate chain present in the cell membrane helps determine the characteristics of the cell and it also helps to identify the chemical signals from outside the cell. Hence, option A is correct.

Other options, like option B, is not correct because the function of the cholesterol in the cell membrane is to prevent the fatty acids from sticking together. Option D is not correct because transport proteins help some molecules to move inside the cell.

6 0
3 years ago
How would the inability to make saliva affect digestion?
irina [24]
I believe the inability to make saliva would affect digestion drastically. The first phase in the process of digestion comes with saliva - it breaks down some substances in your mouth, because it contains amylase which helps during this process. If it weren't for saliva, you probably wouldn't even be able to swallow food - and even if you did, it would be almost impossible to break it down in your body.
5 0
3 years ago
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