In the core ; the central or most important part of something.
The triplet of basis on the DNA and mRNA is known as a codon. It's a code for a specific amino acid.
The eukaryote that has a similar mode of nutrition to that of the white blood cells is AMOEBA.
Amoeba feed on microscopic organisms. When amoeba encounter a food particle, it extends its pseudopodia around the food particle and ingest it. The food particle which is now in the food vacuole of amoeba is broken down and digested by mean of digesting enzymes secreted by the organism.
The cell cycle is the replication and reproduction of cells, whether in eukaryotes or prokaryotes. It is important to organisms in different ways, but overall it allows them to survive. For prokaryotes, the cell cycle, called Binary Fission, allows for them to live on by dividing into two new daughter cells