C. They are caused by the sun's changing magnetic field.
D. They are explosive events that can affect Earth.
Explanation:
I'm sorry if it is wrong but I am almost 100% that it is correct!
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Percentage of calories = ?
Fat = 12 grams
Total calories = 300
1 gram fat = 9 calories
to calculate calories convert gram into calories and then divide by total calories.
No. of calories = (12 x 9) / (300) = 0.36
So, percentage of calories = 0.36 x 100 = 36%
Answer:
A hypothesis is a testable idea which can support an explanation. If there is no way to demonstrate the validity of a hypothesis, it cannot support an explanation. Therefore, it cannot be accepted by the scientific community. ... However, a hypothesis can still be useful whether it supports an explanation or not.
<h2>Answer:</h2>
An obligate aerobe, by contrast, cannot make ATP in the absence of oxygen, and obligate anaerobes die in the presence of oxygen.
An obligate aerobe is an organism that requires oxygen to grow. Through cellular respiration, these organisms use oxygen to metabolise substances, like sugars or fats, to obtain energy. In this type of respiration, oxygen serves as the terminal electron acceptor for the electron transport chain.
An Obligate anaerobes are poisoned by oxygen, so they gather at the bottom of the tube where the oxygen concentration is lowest.
