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kykrilka [37]
3 years ago
14

There are many different types of viruses and bacteria that can live and reproduce inside humans and often make us sick. In whic

h of the following ways are viruses different from bacteria?
A- Viral infections always cause a fever while bacterial infections almost never do
B- Viruses must invade a host cells to reproduce while bacteria can reproduce on their own
C- Virus cells, in general, are at least three times as large as the largest bacterial cell
D- Viral infections are more likely to disable or kill their host than bacterial infections
Biology
1 answer:
Jlenok [28]3 years ago
6 0
I believe (not sure) that the answer is B, viruses must invade their host before being able to reproduce.

I remember seeing a diagram of the general life of a virus, and I remember seeing the virus sticking to a cell, merging in, and reproducing thereafter (sort of like a factory). Once again, I am not sure and the answer may as well be another one.
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A bacterial cell that contains an outer membrane and periplasmic space stains pink to red on Gram stain. Which one of the follow
anastassius [24]

Answer:

a. No discrepancy is present; organisms that contain an outer membrane and periplasmic space should stain pink because of their cell wall composition.

Explanation:

Gram stain is the staining method used to differentiate bacterial species into two groups, gram-positive and gram-negative bacteria. Factors that will differentiate gram-positive from gram-negative include the coloration of bacteria, the composition and chemical and physical properties of cell walls. In these tests, bacteria that have an outer membrane and a periplasmic space are considered gram negative and pink in color (sometimes similar to red) due to their cellular composition. For this reason we can state that there is no discrepancy present in the bacteria exposed in the question; Because this bacterium has an outer membrane and a periplasmic space, then it is normal for the bacteria to turn pink due to its cell wall composition.

6 0
2 years ago
Photosynthesis and cellular respiration are cells ____that occur in cells.
Leviafan [203]

Answer:

A) chemical reactions.

Explanation:

"Photosynthesis is the process through which plants convert light energy into chemical energy. Here is the chemical reaction involved: As we can see, water and carbon dioxide combine to form glucose and oxygen. Since new chemical species are formed, photosynthesis is clearly a chemical change. "

7 0
3 years ago
Trini adds 10g of baking soda to 100g of vinegar. The mixture begins to bubble. When the bubbling stops, Trini finds the mass of
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so the mass wil decrease because CO2 will evaporate

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2 years ago
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D.They are learned
Because I just took the test
8 0
1 year ago
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The plasma membrane, also called the cell membrane, is the membrane found in all cells that separates the interior of the cell from the outside environment. In bacterial and plant cells, a cell wall is attached to the plasma membrane on its outside surface.
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2 years ago
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