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svp [43]
4 years ago
11

What two things does DNA do in cell?

Biology
1 answer:
NemiM [27]4 years ago
7 0

Answer:

DNA contains the instructions needed for an organism to develop ,survive and reproduce.

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When human red blood cells are placed in pure water, the cells immediately burst. which process explains what happens to the red
irga5000 [103]
The process of osmosis explains what happened to the cells.

Osmosis is where water molecules will flow from a region of higher water potential to a region of lower water potential, through a partially permeable membrane. Red blood cell is a human cell and have a partially permeable membrane. At the same time, pure water has the highest water potential among all substances, and of course higher than the cytoplasm of the red blood cell, therefore, water molecules will flow from the water to the red blood cell.

So much water has flown to the red blood cells that the cell membrane cannot hold all and eventually the cell bursts. Therefore, the process of osmosis explains this result.
6 0
4 years ago
The ________ is a substage lens that concentrates light on the specimen.
stiks02 [169]

Answer:

microscope's condenser

Explanation:

The microscope's condenser is a substage lens that concentrates light on the specimen.

<em>The condenser of a microscope is a structure that helps concentrate light rays from the light source to illuminate the specimen on the stage of the microscope. It is made up of a system of lens that converges the ray of light and an aperture diaphragm that can be used to control the amount of light that gets to the specimen on the stage of the microscope.</em>

6 0
3 years ago
In mitosis, how does the number of chromosomes in a daughter cell compare to the number of chromosomes in a parent cell?
baherus [9]
The daughter cells would be genetically identical to the parent cell. Each with 46 chromosomes.
8 0
3 years ago
How many hydrogen atoms are present in each water molecules
Marta_Voda [28]
2

I believe the answer is two, since it's H2O. 

Hope this helps!
8 0
4 years ago
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A commercial advertising a diet pill says it is scientifically proven to help you lose weight. It is recommended by a doctor who
choli [55]
The third answer. The weight loss of the patients might have been due to other things and there is no provable coloration until an experiment is conducted.   
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3 years ago
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