The sun has little or nothing to do with any of these answers except A. The sun gives plants energy, plants give animals energy, and animals give us energy. (Unless you're vegetarian in which case you skip the animal part)
The carbon 14 left from this animal is 3 grams of 24 grams which is: 3g/24g= 1/8 times of its original mass. Then, the age of the animal fossil would be:
final weight= initial weight * (1/2) ^ time/half-live
1/8 initial weight = initial weight * (1/2) ^ time/half-live
log2 1/8= log2 (1/2) ^ time/half-live
-3= -time/half-live
time= -3 * -(half-live)
time= 3 half-live
If the half-live is 5730 years, the age would be: 3* 5730= 17.190 years.
The DNA is packaged... it starts by being wrapped around special protein molecules (histones). This forms a nucleosome.
B. Carbohydrates
The products of photosynthesis include glucose (a carbohydrate) and oxygen. :D hope this helps
