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iren [92.7K]
3 years ago
5

Desta is studying for an entrance exam for a nurse's training program at a local hospital. She learns the components of a DNA mo

lecule. What are these components?
Biology
1 answer:
lara [203]3 years ago
5 0
1. A phosphate group. These give the molecule a negative charge.

2. A nitrogen base. There are four different nitrogen bases though, so be careful. The four different nitrogen bases are Adenine, Guanine, Cytosine, and Thymine.
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Which best describes the nucleus of an atom?
mamaluj [8]

Answer:

The answer is D.

I used the process of elimination to find your answer if you want to understand further look in my explanation. I hope I can help! Have a great day!

Explanation:

So the negatively charged part of a atom is the electron cloud so A is wrong because it would be in the wrong spot. Plus the nucleus is positively charged because it contaims only protons ans neutrons. Neutrons are neutral and protons are positive so the protons over power the nuetrons. Therefore the nucleus is not made of neutrons and electrons so C is wrong. And B is also wromg because the nucleus does indeed have mass. So the correct answer is D, it is the most massibe part of a atom.

3 0
3 years ago
What would happen to a sample of your red blood cells if they were placed in a hypotonic solution
Kruka [31]
The water would rush into the cell and the cell will explode.
5 0
3 years ago
Read 2 more answers
what is the correct arrangement of the bones of a verbal column starting from the brain to the legs ​
pav-90 [236]

Answer:

The arrangement of the bones of a vertebral column start with the cervical spine. The cervical spine control the head and neck. The next section of the vertebral column is the thoracic spine which control the truck and mid back. The last vertebral column is lunar spine which is responsible for the legs.

Explanation:

3 0
3 years ago
A client with malignant hypertension is at risk for a hypertensive crisis, including the cerebral vascular system often causing
Flura [38]
The correct answer is "headache and confusion".
The human body has several mechanisms of action in order to protect critical organs from excess blood pressure and flow. When these mechanisms are not successful in protecting the capillaries of the brain, the patient could suffer from cerebral edema (swelling of the brain) and papilledema (swelling of the optic nerve). These conditions could cause severe headache, confusion, motor and sensory problems and visual disturbances.
7 0
3 years ago
What does it mean when you have blue dots on the bottom of your feet?
Firlakuza [10]

It means at least one of two things, and possibly both:

-- You have been walking around barefoot on magic markers.

-- You need to see a podiatrist (foot doctor), an expert, who will examine
the area, and then tell you ... based on his expert examination ... either
that it's nothing, or else that it's something that should be treated because
it doesn't belong there.

DO NOT shop on the internet for health or medical advice.
It's possibly the stupidest thing a person can do.


8 0
4 years ago
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