life cycle: Quick Facts

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flowering plant: life cycle

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fern: life cycle

life cycle of the black bean aphid

life cycle of the monarch butterfly

Diagram of the fern life cycle showing both diploid and haploid generations, with illustrations of sporophyte, sporangium, spore, prothallus, gametophyte, and fertilization stages, along with key processes like meiosis and mitosis.

Diagram showing the life cycle of Equisetum (horsetail), a Sphenopsida plant, with stages labeled: mature sporophyte produces spores by meiosis, spores grow into gametophytes, gametophytes form eggs and sperm, fertilization produces a zygote, and the zygote develops into a young sporophyte.

Diagram showing the flea life cycle with labeled stages: white oval eggs, wormlike larvae, pupa within a cocoon, and a detailed adult flea, arranged in a circular sequence.

Diagram showing the life cycle of a honeybee, with stages from egg, larva, and pupa to adult emerging from a honeycomb cell. A queen bee lays an egg, a worker bee feeds the larva, and the adult bee emerges on day 21.

Housefly life cycle

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Topics

prenatal development aging birth Gestation puerperium Paedomorphosis seed fruit germination abscission Metabolism death coloration Sex sleep photosynthesis mimicry nutrition life span disease

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Key People

Swammerdam, Jan

Jan Swammerdam

Dutch naturalist

Beneden, Pierre-Joseph van

Pierre-Joseph van Beneden

Belgian scientist

Statue of Italian physician and poet Francesco Redi; located outside the Uffizi Gallery in Florence, Italy.

Francesco Redi

Italian physician and poet

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Heinrich Anton de Bary

German botanist

Charles Chamberlain, 1925

Charles Joseph Chamberlain

American botanist

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J.C. Arthur

American botanist

greylag. Flock of Greylag geese during their winter migration at Bosque del Apache National Refugee, New Mexico. greylag goose (Anser anser)

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