Aceosome contain an enzymes called hyaluronidase and acrosin. these enzymes break the outer wall of egg called zona pellucida, allowing the haploid nucleus in sperm cell to combine with haploid nucleus in egg cell.
Answer - The living species comprise more number of hydrogen atoms in comparison to any other atoms, still 65 percent of the usual organism's mass is oxygen. The prime reason for this is that an atom of oxygen comprises sixteen times more mass in comparison to a hydrogen atom. hopes this helps :)
The answer is b because it is negative on our world