1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Andreyy89
3 years ago
6

This is a Single Choice Question; skip ahead to question content Incorrect Correct answerYour answer A Bx C D Time Spent: 1 min

59 secs Content & Skills CC5DFC5BCHSIRS1 What causes duplex DNA with a certain (A + T):(G + C) ratio to melt at a higher temperature than comparable length duplex DNA with a greater (A + T):(G + C) ratio? A.Stronger van der Waals forces of pyrimidines B.Stronger van der Waals forces of purines C.Increased π- stacking strength D.Reduced electrostatic repulsion of phosphates
Biology
1 answer:
luda_lava [24]3 years ago
4 0
If you add 2+2 you get 4 and if you add 17 you get 21
You might be interested in
Which of the following cells engulf antigens by phagocytosis and present fragments of them on their own surfaces for recognition
Colt1911 [192]

Answer:

C) Dendritic cells.

Explanation:

Dendritic cells are types of immune cells that carry out immune responses by presenting antigens on its surface to other immune system cells.

They are derived from the bone marrow and have tree-like structures. Dendritic cells are found in the skin, lungs, nose stomach and intestines. They are phagocytes and are antigen presenting cells (APCs).

Dendritic cells work by capturing the antigens from foreign bodies and processing and presenting these antigens on their cell surfaces for recognition and action by other cells of the immune system.

7 0
4 years ago
Please answer me in struggling so much with this
____ [38]

Answer:I believe the cells would burst.

Explanation:

Water would keep moving in because of the imbalance.

8 0
3 years ago
In my opinion I think the main events of glycolysis. How many ATP molecules are produces and consumed by glycolysis? What effect
svlad2 [7]

Glycolysis uses 2 ATP and produce 4ATP. So the net gain is true.

Oxygen is used in the Electron Transport Chain as the final electron recipient from complex 4 cytochrome a₃.

Explanation:

Glycolysis is the process which is common in all forms of respiration where glucose is metabolized into pyruvate. This process is very essential to continue the next steps of different respiration. Glycolysis requires 2 molecules to process substrate level phosphorylation to convert glucose to glucose 6 phosphate and fructose 6 phosphate to fructose 1, 6 bisphosphate. But it produces 4 ATPs. Thus net gain is 2ATP.

In ETC, the hydrogen carriers NADH and FADH gives off the hydrogen to reduce the complex 1 and 2 respectively and itself gets oxidized. Thus the electron given off is transferred between 4 complexes to finally give off to oxygen to form water.

5 0
4 years ago
Form an anology between the cnaries used in coal mines nd the lichens living in tundra ecosystems. Be sure to use the define ter
Tasya [4]

Answer:

3x(5-2y)

Explanation:

Factor 3x out of 15x−6xy

7 0
3 years ago
Vertebrates have all the following at some time during their development except one?.
ludmilkaskok [199]
Cell wall is the answer to your question.
4 0
4 years ago
Read 2 more answers
Other questions:
  • Alika finds a certain kind of butterfly near her house. She reads that ultraviolet light is absorbed by the butterfly's wings, r
    9·1 answer
  • "a bacterial infection called lyme disease is spread by ____."
    7·1 answer
  • All organism originated from?
    10·1 answer
  • In science class, Maria observes a white-colored cut flower. She sees that the petals turn red when the flower is sitting in a v
    9·1 answer
  • In what way did rannan make an error in his scientific process
    9·2 answers
  • Which part of the electromagnetic spectrum is necessary for the sense of sight in humans?
    15·2 answers
  • Energy for most chemical reactions in cells is supplied by which organic compound?
    5·1 answer
  • Proteins come in ____ structure varieties.<br><br> 4<br><br> 20<br><br> 12<br><br> 8
    12·1 answer
  • 3. Which biomolecule is properly matched to its monomer?
    11·1 answer
  • Plants use carbon dioxide to build organic molecules during the process of:.
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!