Verified answer

They are all forms of cellular replication. They can also all produce gametes depending on the organism.

Thats pretty much it.

In simple terms, mitosis is the process where non sex cells reproduce by duplicating DNA and dividing into two identical cells. Each cell has a complete set of chromosomes. These cells are called diploid (double) as they have twice as many chromosomes as the two cells that join via fetilization to form it. Meiosis is the process where sex cells (called gametes which carry the genetic material for deteriming the sex of an offspring) reproduce by duplicating DNA and diving into four new cells that have half (haploid) the genetic material of the original cell.

They all involve cell division

They all involve the replication of genetic material (i.e. DNA)

They are all essential to the functioning of the organism

Source(s) ncert book,bio,class XI