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balu736 [363]
3 years ago
9

According to the universal law of gravity, everything has a gravitational force. True or False

Biology
1 answer:
NikAS [45]3 years ago
7 0
I'm thinking it's false
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Why do the cells in all living things need energy?
Sav [38]

The correct option is (A) to fuel their chemical reactions

A lot of biochemical reactions occur per minute inside living cells and these reactions have to be sustained because the survival of living cells depend on them. For these reactions to proceed, energy is needed. This energy is usually obtained from the food which a living organism consumed. The mitochondria, which is the power house of the cell, is the one which convert the energy to the ATP form, which is usable by the cells.

plz mark me as brainliest :)

7 0
2 years ago
Which one of the following is produced in the greatest numbers during one turn of the Krebs cycle?
Vitek1552 [10]

Answer:

The correct answer is - a. NADH

Explanation:

The Krebs cycle is a set of chemical reactions that takes place to generate energy from nutrients such as carbohydrates, fats, and proteins converting to carbon dioxide. by oxidation of acetate.

In the Krebs cycle, each molecule of carbon generates 3 molecules of NADH, one molecule of ATP and 2 molecules of FADH2 in each cycle. Thus, the greatest numbers during one turn of the Krebs cycle is NADH.

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3 years ago
(SCIENCE)
LiRa [457]
C. according to Earth's existing magnetic field. 
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3 years ago
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PLEASE HELP! Describe what you know about enzymes that explains your evidence and your claim.
grigory [225]

Answer:

In the case of catalase, the optimum pH is approximately pH 7.0. That is, catalase works best at a neutral pH. If the solution is too acidic (low pH value) or too basic (high pH value) the catalase is inactive and no longer functions as an enzyme.

hope this helps!!:)

Explanation:

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An atom that gains or loses electrons is called
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Ions! Hope this helped! :))
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