Protozoa are Eukaryotic organisms, they show animal/plant like behaviors. Bacteria are prokaryotic, very tiny simple single celled organisms with no nucleus or mitochondria.
C. Chromosomes because they are need to have the cell funtion.
The feature of the bone tissue which allows it to normally withstand lateral stress without it giving or breaking up. Because the bone which receives the most impact, each opposite side stretches, and last but not the least bones are able to cancel them out themselves.
The host is the host and the guard cell is the guard
