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
masya89 [10]
3 years ago
9

What evidence do we have that DNA exists?

Biology
1 answer:
makvit [3.9K]3 years ago
3 0
Dna exists in the cells of all living organisms and dna proves evolution
You might be interested in
Yes that was correct.
Viefleur [7K]
Ask your question.
What was correct?
4 0
3 years ago
If cells in the process of dividing are subjected to colchicine, a drug that interferes with the formation of the spindle appara
ra1l [238]

Answer:

Colchicine inhibits the formation of microtubules by inhibiting tubulin, a protein required for microtubule synthesis. Microtubules in the form of spindle fibers during cell division pull the DNA from the center of the mother cell into the new daughter cells. If microtubules are not formed DNA will not move into new cells. Hence new cell formation will be inhibited in the metaphase stage. Thus the correct answer is option D.

Explanation:

4 0
3 years ago
Some types of fish can generate an electric field around their body to communicate with other individuals of the same species (l
Neporo4naja [7]

Answer:

Animal behaviour is controlled by the physiological mechanism

Explanation:

There are the known species of fish which communicate with each other through electrical signals or in the form of the electric field. This is known as the electrocommunication and the electroreception.

The communication between two fishes through the electric field is controlled by the physiological mechanism present in the fish and shows that the fish behaviour is controlled by the physiological mechanisms of the fish.

Thus, Animal behaviour is controlled by the physiological mechanism is correct.

5 0
3 years ago
Read 2 more answers
The two most abundant elements in the oceans are sodium and chlorine. Together they make a salt, halite. Sodium is dissolved in
antoniya [11.8K]

Answer:

Volcanic gases. (Ans A)

Explanation:

Ocean water is salty because of the presence of dissolved salt. When water contact with a rock it starts weathering processes and this process starts to dissolve the soluble elements such as sodium out of the rock.

In volcanic gases, lots of chlorine ions are present in the atmosphere, these ions easily dissolve with water and produce the large flux of chloride that splashes into the oceans. So, the most common source of chloride ions in ocean waters comes from the volcanic explosions.

4 0
3 years ago
Modern hospitals often contain semi private rooms and wards where many people share a single room. In light of the spread of mic
jasenka [17]

There are three possible types of room in the hospital:

1. ward (3-4 patients)

2. semi-private room (2 patients)

3. private room (1 patient).

Incidence of hospital-acquired infections is growing, so it would be desirable to promote greater safety for patients in order to avoid those nosocomial infections. So, the best way to prevent the spread of infections is to put patients that are contagious into semi-private and private rooms.


3 0
3 years ago
Other questions:
  • How many total pairs of the highlighted muscle does each individual have?
    7·1 answer
  • Each cell must produce only a subset of the genes that are being expressed. This subset is what differentiates one cell from ano
    7·1 answer
  • Which factor in the Southwestern desert ecosystem is abiotic?
    14·1 answer
  • If you think about fat as old stuff,what new stuff can be made from it
    15·2 answers
  • REALLY EASY!!! JUST CAN'T CHOOSE !!!! WILL GIVE BRAINLIEST!!!! AT LEAST TAKE A LOOK!!! ANSWER IF 100% SURE THO!!!
    7·1 answer
  • Transport proteins allow ___ type of substance to move across the membrane
    10·1 answer
  • ¿Cuál será la presión que tendrá el nitrógeno si el volumen disminuye a 350ml, a la temperatura de 303k?
    10·1 answer
  • Did I bleed through my pants
    14·1 answer
  • Explain about Dengue<br> bye going offline<br>​
    11·1 answer
  • Which of the following provided structural evidence for the concept of a common ancestor
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!