The study of the form and structure of an organism.

Organs and other body parts joined together to perform a particular function.

The outer protective covering of the cell.

The study of the processes of living organisms, or how they work.

The supporting fabric of organs and other body parts.

Two or more tissues joined together to perform a specific function.

The semifluid inside the cell but outside the nucleus.

The structure often called the "brain" of the cell controlling many cell activities.

The tissue that forms the skin and parts of the secreting glands, and that lines the body cavities.

One or more small, round bodies located inside the nucleus that is important in cell reproduction.

The structures that carry inherited characteristics.

Tissue made up of nerve cells called neurons that control and coordinate body activities.

The total mass of genetic instruction humans inherits from their parents.

Tissue that produces power and movement by contraction of muscle fibers.

A structure located in the cytoplasm that produces, stores, and packages secretions for discharge from the cell.

A form of "asexual" reproduction in which cells divide into two identical cells.

Structures in the cytoplasm that are the "powerhouse" of the cell producing energy for the cell.

Structures in the cytoplasm that contain enzymes that digest and destroy cells, bacteria, and foreign materials.

The process of cell reproduction that occurs in sex cells (ovum and spermatozoa).