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Monica [59]
3 years ago
12

People infected with the human immunodeficiency virus (HIV) have an increased

Biology
1 answer:
o-na [289]3 years ago
4 0
C. HIV destroys Helier T cells
This makes it harder for our body to fight off other infections.
HIV basically hijacks the white blood cells (T-cells) n use it to reproduce itself.
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A microbiologist plated a bacterium on a specific medium. After incubation, she noted that the previously yellow medium was now
alexdok [17]

Answer:

A differential medium

Explanation:

Bacteria require nutrients for growth, and in order to culture (grow) them and study their characteristics, different types of media are used.

A selective media is used to grow a particular group of organism while suppressing another. So a selective media usually has an inhibitory agent, which will inhibit the growth of the undesired group. An antibiotic can be added to a medium to make it selective.

A general purpose medium as the name implies can be used to grow any group of bacteria. It has no inhibitory agent and indicator that differentiates between organisms. An example of general purpose media is nutrient agar .

A non-synthetic media is made from natural ingredients.

A differential media differentiates between groups of organisms. Example of differential media is MacConkey agar and Mannitol Salt agar. On MacConkey agar, lactose fermenting bacteria turn pink while non-lactose fermenting bacteria are colorless.

On Mannitol Salt agar, mannitol fermenting bacteria turn yellow while non-mannitol fermenting bacteria are colorless. Mannitol Salt agar is also a selective medium. It has a high salt concentration which inhibits certain organisms.

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3 years ago
Fun fact for today<br> Chickens are the closest living relatives to the T-Rex
finlep [7]

Answer:

cool thx for the fact ☺️

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3 years ago
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In the diagram below, Object A is moving with a speed of 10 m/s and Object B is moving with a speed of 5 m/s. Both objects have
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3 years ago
What does it mean to say that mass is conserved during a physical change?
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Alright, so mass is a property of a physical body. During physical changes, such as acceleration, force, etc, the mass stays the same since we are not affecting its physical shape, just where it is physics wise. So yeah mass is conserved during a physical change.


(This is very confusing I'm bad at explaining things sorry)

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3 years ago
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