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malfutka [58]
3 years ago
9

For a scientific theory to be valid, it must allow you to

Biology
1 answer:
Cloud [144]3 years ago
4 0

Answer:

Explanation:

That's quite a bit of points. Offer 20 next time (which shows up as 10).

Not all experiments lend themselves to this, but the best ones do. Make predictions. The startling experiments (the best of them) certainly allow you to make predictions

Most of the time, experiments confirm what was originally thought. It is, however, the best answer among this bunch.

A is also possible, but not always. I will stick with D, but I think others will pick A.

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Uranium atoms are split to create a tremendous amount of energy in a _____ power plant. Help now i put you brainlest ​
Reptile [31]

Answer:

nuclear

Explanation:

uranium is used in nuclear powerplant

other powerplant don't use uranium, they use wood(biomass) , geothermal energy(geothermal) , and water(hydroelectric) .

Brainliest please

3 0
3 years ago
Organisms need nutrients in order to?
Pie
Organisms need nutrients in order to living organism
6 0
3 years ago
Read 2 more answers
a researcher wishes to know whether there is a significant difference in the number of knee injuries reported among four sports.
boyakko [2]

Answer:

Chi-square analysis cannot be used to check for significant difference in the number of knee injuries among four sports.

Explanation:

The chi-square analysis is a statistical procedure that is used to test association between measured variables or goodness of fits of a set of measured variables to expected outcomes.

<em>In the case of testing for significant difference, chi-square analysis cannot be used as testing for significant difference in two or more means requires using t-test, analysis of variance, or any other relevant statistical procedure.</em>

To compare number of knee injuries reported among four sports for significant difference, the most suitable statistical procedure would be analysis of variance.

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8 0
4 years ago
Which of the following is NOT a characteristic of animals?
Alona [7]

Answer:

D

Explanation:

3 0
3 years ago
External respiration involves The exchange of O2 and CO2 between the lungs and the environment The exchange of wastes through th
Ganezh [65]
External respiration (correct answer) involves the exchange of oxygen and carbon dioxide within the environment.

The exchange of wastes through the skin is just called excretion by sweating. 

There is no exchange of nutrients that occur in the lungs but rather absorption of nutrients is the function of the gastrointestinal tract.

The exchange of oxygen and carbon dioxide within the cell is called cellular respiration and involves carrying oxygen from the blood to the cell then the cell uses it as the final electron acceptor in the electron transport chain. The metabolic wastes of the cell, primarily carbon dioxide, goes now to the bloodstream to be exchanged for oxygen in the lungs.
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