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ki77a [65]
3 years ago
13

1 ) HIV weakens the immune system by killing a. antibodies. c. helper T cells. b. B cells. d. killer T cells.

Biology
1 answer:
kondaur [170]3 years ago
5 0
1.)<span>a. antibodies
 2.)</span><span>b. its mechanism is well understood</span>
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List three changes of state during which energy is absorbed.
mote1985 [20]

The three changes of state during which energy is absorbed are:

1. Change from solid to liquid - Melting.

2. Change from liquid to gas - Vaporization

3. Change from solid to gas - Sublimation

All these changes of state require heat energy to break the attractive forces that hold the particles of the molecules together, so that they can move into more disorderly states. For instance, when heat is applied to a solid, the solid absorbs the heat and use it to break the attractive forces that are holding the molecules of the solid together. At a particular temperature, the attractive forces will be completely overcome and the solid framework will collapse, thus leading to the melting of the solid.

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3 years ago
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plzzz help i will give brainlyest Sally says that divergent plates cause the greatest, strongest Earthquakes. Marks says she's w
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Answer:

Mark

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At divergent plate boundaries, earthquakes tend to be weak and shallow. Transform plate boundaries, have shallow, but very powerful earthquakes. At convergent plate boundaries, where two continental plates collide, earthquakes are deep and also very powerful.

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If air resistance is ignored, then according to the law of conservation of energy, the sum of potential energy and kinetic energ
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Would be same everywhere !! mechanical energy is always constant !

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3 years ago
Using the graphs below, determine which water drop rate leads to the highest seed growth.
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Answer:

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