The end of a difficult time (aka hope )
Carbon enters the atmosphere as carbon dioxide from respiration and combustion. Carbon dioxide is absorbed by producer to make carbohydrates and photosynthesis. consumers feed on the plants passing the carbon compounds along the food chain.<span />
Because each parent contributes to their child 23 chromosomes, so therefore each parent gives their child half of the DNA of the child.
It wouldn't be 30% or 70% because the balance of the chromosomes the parents contribute is always equal.
A single fundamental similarity and or unity among all living organisms, is that all living organisms are composed of the basic units is life known as cells.
Not 100% sure but I believe it's lipids