Answer:
option b is correct
Explanation:
living things absorbed energy from sun in the form electronegative radiation and convert it into chemical energy in the form of organic compound like carbohydrate protein etc and at the cellular respiration this energy is converted into mechanical energy by the breakdown of this compound
<span>The human egg cell is the largest cell in the human body, measuring approximately 0.13 mm in diameter. Its size is 10 times the diameter and 1000 times the volume of most other human body cells. It can actually be seen without the aid of a microscope if one observes keenly. Unlike ordinary body cells which have a cell membrane, the egg has a special outer coat called zona pellucida which is made up of a jelly-like extracellular matrix composed mainly of glycoproteins.</span>
A central carbon atom bonded to an amino acid group and an R group.