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Vika [28.1K]
3 years ago
5

Describe two ways experimental design can be used in medicine and healthcare

Biology
1 answer:
Semenov [28]3 years ago
6 0

Answer:

Experimental or interventional studies compare the effect of treatments or interventions with control in humans. Placebo or different treatment(s) or intervention(s) may be used as control. Experimental studies have to be transparent and evidence-based. Two examples include clinical studies as well as observational drug studies.

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Which product is the result of light reactants in photosythesis
slega [8]

The Light Reactions of Photosynthesis. Light is absorbed and the energy is used to drive electrons from water to generate NADPH and to drive protons across a membrane. These protons return through ATP synthase to make ATP.

<u>What is the end product of light reaction in photosynthesis?</u>

The energy from sunlight is converted into a small amount of ATP and an energy carrier called NADPH. Together with carbon dioxide, these are used to make glucose (sugar) through a process called the Calvin Cycle. This is the things happening during light reaction of photosynthesis .

Hope this helps:)

8 0
4 years ago
Which one the brick or the bread whould have the greater density explain your answer​
sesenic [268]

Answer:

The brick

The brick has the greater mass, therefore has the greater density. The

particles in a brick are more tightly packed together. Density is an

indication of how tightly packed the particles in the substance are

3 0
3 years ago
Read 2 more answers
Do you think the benefits of using water resources
makkiz [27]

Answer:

Yes, I think the benefits of using water resources to generate electricity outweigh the costs and drawbacks

<u>Explanation:</u>

The electricity produced using water is called hydropower has benefits like it does not pollute the air. If water is used to produce electricity than every state can produce its own electricity without relying on other states for fuel.

With these benefits, hydropower is very costly and it has several other drawbacks also like it pollutes water and reduces the oxygen level in the water. So it is a threat to wildlife. It reduces recreational activities like swimming, boating, and fishing, etc.

8 0
3 years ago
The updrafts and downdrafts represented within this cloud are primarily caused by differences in?
andreev551 [17]

Answer:

B.air density

Explanation:

Updraft and downdraft is the upward and downward movement of air.

It caused by differences in air densities. There could be differences in air current due to the heat that occur in the ground during the day time which makes air above more warmer than the air below. The air above is less dense as it rises above it becomes cool.

It also occur when air current moves over mountains.

6 0
3 years ago
The energy needed to start a chemical reaction is decreased by using an?
butalik [34]

Answer:

By using a catalyst.

Explanation:

A Catalyst lowers the activation energy needed for a reaction.

5 0
3 years ago
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