A cell that undergoes meiosis to produce megaspores in plants, which later develop into the female gametophyte.

Large spores produced by plants, specifically in the female gametophyte, which will develop into seeds.

A leaf or structure in plants that bears megasporangia and is involved in producing megaspores.

A type of spore produced during meiosis in certain fungi or protists.

Tiny, often microscopic, animals that live in the interstitial spaces of sediment or in aquatic environments.

The first division in meiosis, where homologous chromosomes are separated into two daughter cells.

The second division in meiosis, where sister chromatids are separated into different daughter cells.

A spore formed by meiosis, typically in fungi or plants, involved in reproduction.

A pigment found in the skin, hair, and eyes that provides color and protects against UV radiation.

A type of skin cancer that originates in melanocytes, the cells that produce melanin.