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puteri [66]
3 years ago
15

Nitrogen is not needed for photosynthesis.

Biology
1 answer:
Lelechka [254]3 years ago
7 0
Ok 1234567891011121314151617181920
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The cytoplasm in a single celled organism and the circulatory system in a human both?
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The cytoplasm in a single-celled organism and the circulatory system in a human both transport substances throughout the organism
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If the somatic cells of a dog contain 78 chromosomes, then after mitosis the new somatic cells would contain_____ chromosomes.
NeTakaya
There are
39
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Explanation:
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How many NEUTRONS does an element have if it’s atomic number is 44 and it’s mass number is 154 ?
krek1111 [17]

If the element has a atomic number of forty-four then the amount of neutrons would be "fifty-seven." This element is actually called Ruthenium and it has forty-four protons, and electrons, and it has fifty-seven neutrons and you can determine this by using this equation then solve:

44 + N = 101

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Hope this helps!

6 0
3 years ago
1.
Allushta [10]
1. The answer is "<span>the energy required to start the reaction".

</span>This energy is called as activation energy of the reaction. If the activation energy is high, reaction is slow. Enzymes help to carry out the reaction by a new path by reducing the activation energy. But the energy of reactants and the products remain as same as without enzyme.

2. The answer is "reaction in cells would be too slow to sustain life<span>".

</span>If the activation energy is very high for the reaction, then that reaction will be very slow and will require more time<span> to complete the reaction. Then survival is very low. Hence, the roll of enzymes is very important to sustain life.</span>
7 0
3 years ago
You tear a piece of paper in half to make it smaller. What type of property
andrey2020 [161]

Answer:

D. A physical property

8 0
3 years ago
Read 2 more answers
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