C would be the best choice
Dark occur in the stroma, and do not use light energy
Answer:
This happens due to both refraction and reflection. You're able to see the "red" on the apple because the light reflects off of it and into your eyes thus making the color visible.
Answer:
The question is incomplete.
However, I notice that your question is mainly dealing with
"Nucleotides with a single ring structure"
I tackled that part, also providing explanation to the point you focused on.
Explanation:
Nucleotides are compounds in which nitrogenous bases (purines and pyrimidines) are conjugated to the pentose sugars (ribose or deoxyribose) and at least one phosphate group. Thus a nucleotide consists of a nitrogenous base, pentose sugar and at least one phosphate group.
Examples of the nitrogenous bases are Adenine, Guanine, Thymine, Uracil and Cytosine. Of all, Thymine, Uracil and Cytosine are with single ring, while Adenine and Guanine are double ring structure.
Answer:
1.623
Explanation:
There's a general rule about the movement of energy through the trophic levels. That rule says that every next trophic level gets 10% of the energy from the previous trophic level. If there are 1,623 calories in the first trophic levels, then the second trophic level will receive 162.3 calories. The next, third trophic level will receive 16.23 calories while the last fourth trophic level will receive 1.623 calories.
