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
Musya8 [376]
2 years ago
11

1. How many kinds of nitrogen bases does a DNA molecule have? A. 2 B. 3 C. 4. D. 1

Biology
2 answers:
emmainna [20.7K]2 years ago
5 0

Answer:

4

Explanation:

HOPE IT HELPS..........

aev [14]2 years ago
3 0

Answer:

4.

Explanation:

Adenine, Thymine, Cytosine, and Guanine

(In RNA Thymine is replaced with Uracil)

You might be interested in
Mitochondria differ from chloroplasts in that mitochondria
ANTONII [103]

Answer:

Mitochondria differ from chloroplasts in that mitochondria is the energy bank of every cell while chloroplast houses the chlorophyl that gives green pigmentation for photosynthesis to occur in plants

Explanation:

7 0
3 years ago
A recent study reported by de meyer and others revealed that _____, which is a protein fragment that forms plaques in the brain,
FinnZ [79.3K]
The answer is amyloid beta. They clump together and form plaques. The formed plaque can block signals transmitted from one cell to another cell. In addition, the plaque can cause swelling, especially in the area where it is formed. It can also digest the disabled cells. This type of plaque is very common among patients with Alzheimer's Disease.




5 0
3 years ago
What organ system is responsible for transporting oxygen to your cells?
Leokris [45]
The circulatory system - hemoglobin in the blood transports oxygen :)
3 0
3 years ago
where did the rats come from and why did they have a negative effect on the palm trees on Easter Island
telo118 [61]
In one of the studies of about rats in Easter Island, it was believed that rats were the reason for the decrease of palm trees. 
According to a system framework study, there are relationships between the birth and death of people with the rats and the palm trees. It explains that peoples' population in Easter island has a relationship with rats and palm trees in the area. 
<span>The number of palm trees decreases because of the increased number of rats that eats its fruits. Seed germination became frequently interfered because of this activity. 
</span><span>However, the slow growth of palm trees was also blamed for the tree cutting off the people.</span>
5 0
2 years ago
Read 2 more answers
What characteristics do all producer in common
Luda [366]

Answer:

they give the nutrients to the primary consumers.

Explanation:

producers are like-plants that are consumed by deer/bunnies etc. All those nutrients will decrease at the upper levels at the food chain so they have to have enough nutrients to keep the animals alive and healthy. When the lion eats the deer ( it was an example) some of the nutrients and minerals that the deer ate from the plant will be consumed by the lion while its being eaten.

<em>Hope this helps:)</em>

6 0
2 years ago
Other questions:
  • This feathered dinosaur is not considered an index fossil because it
    11·1 answer
  • Where is mucous connective tissue found? _________________________?
    11·1 answer
  • Why is our blood system is described as transport highway?
    6·1 answer
  • Food moves through the digestive system in a series of waves of muscular contractions called ______________.
    5·1 answer
  • Which organelle stores food
    5·1 answer
  • A virus causes the common cold.<br> O True<br> O False
    10·2 answers
  • is an organism that uses the energy from the sun or inorganic substances to make its own food; it is also called a producer. is
    9·2 answers
  • WILL GIVE BRAINLIEST!
    13·1 answer
  • Where do you expect new volcanoes to form? Where new islands will form?
    10·1 answer
  • Isotopes are atoms of the same element with the same number of protons and ________________.
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!