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
olchik [2.2K]
3 years ago
10

Why was DNA created and what makes up DNA

Biology
1 answer:
leva [86]3 years ago
7 0
DNA is made of chemical building blocks called nucleotides. These building blocks are made of three parts: a phosphate group, a sugar group and one of four types of nitrogen bases. To form a strand of DNA, nucleotides are linked into chains, with the phosphate and sugar groups alternating.
You might be interested in
Why are the cartilage rings in the trachea important? What do you think would happen if they were not there?
timama [110]

Answer:

The trachea, commonly known as the windpipe, is a most important organ as it allows the passage of air into the lungs. Because the trachea has a soft tissue tubular formation, it needs a base of stronger, yet flexible stuff that will give it support, protect it, and still allow the passage of air into the lungs.

This is precisely the task of the tracheal rings, or cartilage rings in the trachea. These rings are made out of cartilaginous tissue, which is much stronger than the soft tissue of the tubule, but are still flexible enough to not close down the tube when air is flowing in. Thus, the tracheal rings have two tasks: one, provide support and protection for the much softer and more vunerable tube of soft tissue through which the air passes, and two, provide flexibility so that air can flow easily.

If these tracheal rings did not exist, if they are crushed, or removed, a person´s trachea would simply collapse and the person would die as air would not be able to flow through to the lungs.

5 0
3 years ago
The diagram to the right represents the lysogenic cycle. What is occurring at step D? The provirus is created. The provirus is r
dem82 [27]

Answer: The Answer is C. The provirus leaves the host cell 's nucleic acid

Explanation:

5 0
3 years ago
Read 2 more answers
Which of these substances are greenhouse gases? Check all that apply. Oxygen carbon dioxide water vapor methane nitrous oxide
Arisa [49]

Which of these substances are greenhouse gases?

<h3>carbon dioxide </h3><h3>water vapor </h3><h3>methane </h3><h3>nitrous oxide</h3>

Those are answer's <em>I chose</em>, if there are <u>more</u> or <u>less</u>, please correct me.

Please give a <u>brainliest</u> and a <em>thanks</em>.

<h2>❣</h2>
5 0
3 years ago
Read 2 more answers
Summarize the inflammatory response using your own words​
astra-53 [7]
The inflammatory response occurs when tissues are injured by bacteria,trauma,toxins,heat,or any other cause.The damaged cells release chemicals including histamine, bradykinin,and prostaglandins. These chemical cause blood vessels to leak fluid into the tissues, causing swelling
Hope this help and be safe
4 0
3 years ago
Exchange of oxygen and carbon dioxide in the lungs uses which mode of cellular transport?
Mumz [18]

Answer:

D: Simple Diffusion

Explanation:

Diffusion is a transport driven by a concentration gradient.  Gas molecules move from a place of high concentration to an area of low concentration. Knowing when blood is low in concentration and high in carbon dioxide it goes under gas exchange with air into the lungs.

Hope this helped! :)

6 0
3 years ago
Other questions:
  • A researcher collected archaea and protists from a thermal vent. how do the cells of these two organisms differ?
    5·1 answer
  • Help as fast as possible please will give brainlist
    5·1 answer
  • ​leonard has been diagnosed with arthritis in his knees. which activity should he avoid?
    6·1 answer
  • The brain waves of sleeping infants appear to be qualitatively different from those of an adult who is dreaming.
    7·1 answer
  • Examine the graphic below. Which organism is MOST DISTANTLY related to
    13·1 answer
  • In both plants and animals food molecules are broken down and CO2 is released by what
    10·1 answer
  • Help! I need help with this ASAP, I'm so confused for this.
    9·1 answer
  • PLEASE HELP picture above 13 points
    5·1 answer
  • Which of these organisms would most likely be found at the top of an energy pyramid?
    11·1 answer
  • Which statement accurately describes natural selection?
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!