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AlladinOne [14]
3 years ago
5

What do B cells do when they identify a pathogen?

Biology
1 answer:
Bad White [126]3 years ago
7 0

D

Explanation:

With the help T cells , B cells make special proteins called antibodies which stick to antigens on surface of germs stopping them in their track.

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5.water molecules are able to move towards the the leaflets in a plant or tree through xylem, the action is performed because mo
Luba_88 [7]

Answer: True

Explanation:

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Michelle goes to her dentist and, after having a couple of cavities filled, her dentist strongly suggests that she reduce her in
steposvetlana [31]

She was suggested to increase calcium phosphate and reduce soda content because acidic soda dissolves the calcium phosphate of the teeth.

Explanation:

Calcium phosphate is an important mineral which keeps the teeth firm and strong. If calcium phosphate is not present in adequate quantity it will cause the teeth to become soft and easy for cavities to get formed.

Calcium phosphate naturally repairs the teeth by remineralization process.

Soda contains phosphoric and citric acids which dissolve the protective layer of calcium phosphate of the teeth and makes it brittle causing increased cavities.

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3 years ago
Hopefully you are getting the picture that science is a dynamic process, always changing as new information arises. Any individu
kondaur [170]

Experimentation and data collection provides solution to certain problems. It helps to solve an hypothesis formulated providing results and serve as guide for further experiments.

1. A scientific hypothesis is best described as an "educated guess." - False

2. Failure to disprove a hypothesis proves that the hypothesis is correct.- False

3. Scientific theories are never questioned.- False

4. A scientific theory is based on educated guesses and is not backed up by facts/data.-False

5. Scientists that contribute data that contradicts an established theory are not highly regarded in the scientific community.- False

7. Scientific facts are never questioned.-False

The True

6. In order for an investigation to be considered scientific, a controlled experiment must be used.- True

A control serves as a guide in an experiment as the experimental variable is tested with it to see the possible changes or outcome.

8. Science can only answer questions about things that can be seen and observed.- True

Science provides solutions to problem that have been identified, for which data are generated in respect to the problem identified and solutions are provided.

9. Untestable hypotheses fall outside the realm of scientific inquiry -True

An hypothesis should be testable, it is the problem statement that requires a solution.

7 0
3 years ago
The patient is a 68-year-old man who has had shortness of breath (SOB) for the past 2 to 3 days. Compose two (2) complete nursin
AfilCa [17]

Answer:

The patient is a 68 year old man...The patient might be weak as he is old.

The patient had had shortness of breath for the past 2-3 days... he might be suffering from a mini heart attack

Explanation:

5 0
4 years ago
Which is a carbohydrate monomer?<br> O glucose<br> O sucrose<br> O glucagon<br> O glycogen
Tanzania [10]
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2 years ago
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