Living world

Cells

The basic structural, functional, and biological units of all living organisms.

Organelles

Specialized structures within a cell that perform specific functions.

DNA

Deoxyribonucleic acid, the molecule that carries genetic information.

Mitosis

A type of cell division that results in two identical daughter cells.

Meiosis

A process of cell division that reduces the chromosome number by half, resulting in gametes.

Haploid

A cell with half the number of chromosomes, typical of gametes.

Diploid

A cell with two complete sets of chromosomes, one from each parent.

Tissues

Groups of cells that work together to perform a specific function.

Organs

Structures made up of different types of tissues that perform specific functions.

Organ Systems

Groups of organs that work together to perform complex functions.

Puberty

The period during which adolescents reach sexual maturity and become capable of reproduction.

Hormones

Chemical messengers produced by glands that regulate various functions in the body.

Glands

Organs that secrete hormones or other substances.

Characteristics of Male Reproductive System

Includes structures such as the testes, vas deferens, and prostate gland associated with male reproduction.

Characteristics of Female Reproductive System

Includes structures such as the ovaries, fallopian tubes, and uterus associated with female reproduction.

Ovarian Cycle

The monthly series of events in the female reproductive system that involves the development of ovarian follicles.

Menstrual Cycle

The regular natural change that occurs in the female reproductive system that makes pregnancy possible.

Spermatogenesis

The process of sperm cell development in males.

Erection

The physiological process by which the penis becomes firm and engorged with blood.

Ejaculation

The expulsion of semen from the male reproductive system.