I believe it’s B sorry if it’s wrong
Polysaccharide complex sugars
Sugar and phosphate energy source
Electron sharing ionic bonding
A river delta
Hope it helped!
Answer:
In the first stage of sexual reproduction, "meiosis", the number of chromosomes is reduced from a diploid number (2n) to a haploid number (n). During "fertilisation", haploid gametes come together to form a diploid zygote, and the original number of chromosomes is rest
Explanation: