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Dahasolnce [82]
3 years ago
12

What is a test variable? Give an example

Biology
1 answer:
babunello [35]3 years ago
4 0
If a scientist conducts an experiment to test the theory that a vitamin could extend a person's life-expectancy, then: The independent variable is the amount of vitamin that is given to the subjects within the experiment. This is controlled by the experimenting scientist.
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How would you determine if a bond if polar or nonpolar?
Anika [276]
The greater the electronegativity difference, the moreionic<span> the </span>bond<span> is. </span>Bonds<span> that are partly </span>ionic<span> are called</span>polar<span> covalent </span>bonds<span>. </span>Nonpolar<span> covalent </span>bonds<span>, with equal sharing of the </span>bond<span> electrons, arise when the electronegativities of the two atoms are equal</span>
3 0
3 years ago
water shows (blank) bonding where electrons are shared (blank). This makes water very special and important to life
Murrr4er [49]

Answer: water shows ionic bonding where electrons are shared atoms

Hope this helps

Plz mark brainleist

4 0
3 years ago
Lsotopes of uranium are used as nuclear fuel in power plants. True False
Nikitich [7]
True. isotopes of uranium i.e U 235 is used as nuclear fuel in power plants

5 0
3 years ago
Read 2 more answers
Use the complementary rule: If we had a DNA strand of 20 nucleotides, and 6 of them
polet [3.4K]

Answer:

6 thymine, 4 guanine. 4 cytosine

Explanation:

Adenine pairs with thymine, so you need 6 of each

Cytosine matches with guanine, but the total of nucleotides is 20, so

6(adenine)+6(thymine)=12

20-12=8

8= 4(guanine)+4(cytosine)

8 0
3 years ago
Cellular respiration uses the products of photosynthesis __________&amp; ___________ and produces _________ gas, _________ &amp;
defon

Explanation:

oxygen and glucose

carbon dioxide gas, water and ATP.

hope it helps. :)

4 0
3 years ago
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