Carbon is the only element that can form so many different compounds because each carbon atom can form four chemical bonds to other atoms, and because the carbon atom is just the right, small size to fit in comfortably as parts of very large molecules. ... They can even join "head-to-tail" to make rings of carbon atoms.
Answer:
B. Hominid
Explanation:
hominid refers to a family of primate
bipedal refers to using both legs for walking
If I had to guess it would be C metabolism
Physical chemists study matter and energy, and there is chemical reactions in your body, and all living things have elements, like carbon.
I would say D
Answer:
Avoid technical jargon as much as possible and use interesting metaphors or stories