Cell biology is the study of the structure and function of cells, which are the basic units of life.

Cytogenetics is a science that studies the structure and function of chromosomes and genes.

Astrocytes are one of the important support cells in the brain.

Oligodendrocytes play a role in supporting the nerve cells of the central nervous system.

He received the letter challenging him to a duel and began preparing for the duel.

Gender roles are an important element in defining individual behavior in society.

His role is to fulfill his responsibilities as a leader.

It is important to understand the importance of health.

Insects have an exoskeleton, which protects their body.

The human endoskeleton is made up of 206 bones.