Answer:DNA has three types of chemical component: phosphate, a sugar called deoxyribose, and four nitrogenous bases—adenine, guanine, cytosine, and thymine. Two of the bases, adenine and guanine, have a double-ring structure characteristic of a type of chemical called a purine.
Explanation:
Answer:
4
Explanation:
because it needs all the other stuff
I'm new here and this is one of the first things i've done on this site but to answer the question, i believe the answer is amino acids
Answer:
Distal
Explanation:
A finger is distal to the wrist, which is distal to the elbow, which is distal to the shoulder.
Answer: c
Explanation: Plants and animals need nitrogen to make proteins but they cannot take it in from the air. Because nitrogen is unreactive as a gas, it has to be transformed into a new molecule. When bacteria in the soil takes nitrogen from the air, it becomes nitrates. Finally, it can move through the food chain in this form.
