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marissa [1.9K]
3 years ago
8

Name the two gases that are exchanged when someone breathes

Biology
2 answers:
Mrac [35]3 years ago
4 0
Carbon dioxide and oxygen
tatuchka [14]3 years ago
3 0

Answer: Carbon dioxide and Oxygen

Explanation:

The process of exchange of gases results in the exchange of gases. During this process the oxygen is taken from from the atmosphere and  it is transported to various cells of the body.

The carbon dioxide is exhaled from the body into the atmosphere which is utilized by the plants present in the environment. These plants provides us with oxygen.

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Operons allow prokaryotes to...?
labwork [276]
<span>a. replicate DNA at the appropriate time.

Prokaryotes are one celled organism that only reproduce by binary fission. A copy of a copy, of course the DNA is copied as well. DNA is duplicated a succinct period of time when necessary since the energy needed to perform this process is necessarily abundant. </span>
3 0
3 years ago
A group of cells is assayed for DNA content immediately following mitosis and is found to have an average of 4 picograms of DNA
damaskus [11]

Answer:

b: 8;8

Explanation:

Mitotic or meiotic cell division constitute the m phase of the cell cycle. At the end of the m phase, the new cells enter the interphase stage of the cell cycle. The interphase is further sub-divided into;

  • <em>the G_0 phase,</em>
  • <em>the G_1 phase,</em>
  • <em>the S phase; and</em>
  • <em>the G_2 phase</em>.

The G_0 phase is essentially a resting phase. Cells that do not need to divide except when necessary move into this phase after exiting the m phase.

Actively dividing cells enter the G_1 phase after exiting the m phase. Cell development and growth takes place. From there, the cells enter the S phase where DNA replication/synthesis takes place. The cells then enter the G_2 phase where proteins are synthesized in preparation for division or m phase.

At the S phase, the amount of DNA a cell carries is doubled but the chromosome number remains the same. For example, if a cell enters the S phase with 2 g of DNA containing 10 chromosomes, at the end of S phase, the amount of DNA would have come 4 g while the number of chromosomes will remain 10.

Hence, if the average amount of DNA in the assayed cells immediately after mitosis is 4 picograms, the amount would be 8 picograms at the end of S phase and will still remains 8 picograms at the end of G_2 phase.

The correct option is b.

8 0
3 years ago
How could you now analyze or interpret how social reality affects our daily function as individual or as a social worker? If yes
alexgriva [62]

Answer:

Concerts, sports games, and political rallies can have very large crowds. When you attend one of these events, you may know only the people you came with. Yet you may experience a feeling of connection to the group. You are one of the crowd. You cheer and applaud when everyone else does. You boo and yell alongside them. You move out of the way when someone needs to get by, and you say “excuse me” when you need to leave. You know how to behave in this kind of crowd.

It can be a very different experience if you are travelling in a foreign country and find yourself in a crowd moving down the street. You may have trouble figuring out what is happening. Is the crowd just the usual morning rush, or is it a political protest of some kind? Perhaps there was some sort of accident or disaster. Is it safe in this crowd, or should you try to extract yourself? How can you find out what is going on? Although you are in it, you may not feel like you are part of this crowd. You may not know what to do or how to behave.

Explanation:

I don't have enough knowledge about this hope it helps

6 0
2 years ago
SOMEONEEE HELPPP MEEEE
Marta_Voda [28]
I would say C.
I hope it’s right or u can individually search up each of those animals to check that they’re a secondary consumer.

4 0
3 years ago
Which of the following is an example of a technological solution to a problem?
Maurinko [17]
The answer is:  [A]:  "A process that cleans pollution from a local pond" .
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5 0
3 years ago
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