Answer:
A simple microscope
Explanation:
Because it only has a single lens
Plasmids are small DNA fragments that occur in many bacterial cells.
Answer:
That is the smooth endoplasmic reticulum.
Explanation:
You can tell because there are no ribosomes on it.
Cell-mediated immunity <span>provides defense against viruses, abnormal cells, and other intercellular pathogens.</span>