写真素材の検索結果

Sperm observations by van Leeuwenhoek, 1700

Sperm theories discussed by van Leeuwenhoek, 1699

Spermatozoa of a dog by van Leeuwenhoek, 1685

Spermatozoa of a rabbit by van Leeuwenhoek, 1685

Human sperm, artwork

Human sperm and egg, artwork

Human sperm and egg, artwork

Selective breeding of honey bees

False-colour TEM of a human sperm

Sperm cell

Human sperm cell, SEM

Human sperm cell, SEM

Human sperm cell, SEM

Human sperm cell, SEM

Human sperm cell, SEM

Human sperm cells, SEM

Human sperm cells, SEM

Human sperm cells, SEM

Maturing sperm, SEM

Maturing sperm, SEM

Sperm tails, TEM

Sperm tails, TEM

Sperm tails, TEM

Sperm production, artwork

Human sperm, artwork

Sperm cells, SEM

Sperm cell, SEM

Sponge releasing sperm

Human sperm cells, SEM

Human sperm with dna, artwork

Human sperm and egg, artwork

Human sperm and egg, artwork

Human sperm and egg, artwork

Testis sperm production, light micrograph

Male spider with sperm packets

Van Leeuwenhoek's letters to the Royal Society, 1704

Fertilisation, conceptual image

Red blood cells and vessels by van Leeuwenhoek, 1700

Sperm production, light micrograph

Sperm production, light micrograph

Sperm production, light micrograph

Sperm bank

Sperm bank

Sperm bank

Sperm bank

Wright's theory of the universe, 1750

Epididymis, light micrograph

Sertoli cell, TEM

Fetal testis, light micrograph

Fetal testis, light micrograph

Sertoli cells, TEM

Sertoli cells, TEM

Sertoli cells, diagram

Human fertilisation, artwork

Human fertilisation, artwork

Human fertilisation, artwork

Common frog testis, light micrograph

Rust fungus on a rose leaf, SEM

Sperm bank

Scabiosa succisa seedhead

Chamerion angustifolium meadow

Hard ferns (Blechnum spicant)

Testis, LM

Testis, LM

Testis, LM

Sertoli cell, TEM

Nereididae polychaete worms spawning

Spermatogenesis in mammalian testis, light micrograph

Testis epididymis, light micrograph

Testis epididymis, light micrograph

Testis epididymis, light micrograph

Testis epididymis, light micrograph

Epididymis, LM

Epididymis, LM

Seminiferous tubule, light micrograph

Dead-leaf bush crickets mating

Human sperm cells, artwork

Sperm production, SEM

Sperm production, SEM

Sperm production, SEM

False-colour SEM of a human sperm

False-colour SEM of sperm around a human egg

Sperm storage

In vitro fertilisation

Sperm bank

Sperm bank

Sperm bank

Van Leeuwenhoek's 'Dissections and Discoveries', 1696

Cow's spinal cord observed by van Leeuwenhoek, 1717

Human sperm, TEM.

Seminiferous tubules in the testis, SEM

Seminiferous tubules in the testis, SEM

Seminiferous tubules in the testis, SEM

Epididymis, light micrograph

Epididymis, light micrograph

Epididymis, light micrograph

Epididymis, light micrograph

Prostate gland, light micrograph

Prostate gland, light micrograph

Prostate gland, light micrograph

Contraceptive coil in uterus, artwork

Common frog and frogspawn

Toad lily pollen, SEM

Toad lily pollen, SEM

Celandine pollen, SEM

Crocus pollen, SEM

Daisy pollen, SEM

Lisianthus pollen, SEM

Immature germ cell in semen, SEM

Immature germ cell in semen, SEM

Immature germ cell in semen, SEM

Katydid laying eggs

Katydid laying eggs

Snails hatching

Snail eggs

Snail laying eggs

Deceiver fungus and leaves

Lily pollen, light micrograph

In vitro fertilisation, light micrograph

In vitro fertilisation, light micrograph

In vitro fertilisation, light micrograph

In vitro fertilisation, light micrograph

Shaggy parasol mushrooms

Cassowary egg

Emu egg

Ostrich egg

Section through flower ovary, light micrograph

Section through flower ovary, light micrograph

Pollen grains, SEM

Knapweed flower, Fluorescence

Lily (Lilium 'Child In Time') anthers

Sunflower pollen grains, SEM

Daisy seed head, SEM

Daisy seed head, SEM

Daisy disc floret, SEM

Daisy disc floret, SEM

Pollen grains, SEM

Aubergine pollen grain, SEM

Aubergine pollen grain, SEM

Basil pollen grain, SEM

Basil pollen grain, SEM

Rust fungus infection, SEM

Rust fungus infection, SEM

Fungus parasitising a fly

Insect egg, SEM

Insect egg, SEM

Midge eggs, light micrograph

Primrose (Primula vialii) flower stalks

Salad burnet (Sanguisorba minor) flowers

Scutellaria galericulata flowers

Thistle (Cirsium vulgare) flower opening

Honeybee leg, SEM

Honeybee leg, SEM

Honeybee leg, SEM

Products of meiosis and mitosis, artwork

Products of meiosis and mitosis, artwork

Bird reproductive organs, artwork

Ovarian follicle, TEM

Ovarian follicle, TEM

Geranium pollen, SEM

Pollination,SEM

Bay tree pollen, SEM

Bay tree pollen, SEM

Daisy pollen, SEM

Daisy pollen, SEM

Hellebore pollen, SEM

Hellebore pollen, SEM

Mimosa pollen, SEM

Mimosa pollen, SEM

Orange pollen, SEM

Orange pollen, SEM

Hibiscus stamens, SEM

Hibiscus stamens, SEM

Hibiscus stamen, SEM

Ovulation, artwork

Camellia pollen, SEM

Geranium pollen, SEM

Geranium pollen, SEM

Geranium pollen, SEM

Hibiscus flower pistil, SEM

Rose pistil, SEM

Flower pistils, SEM

Flower pistils, SEM

Flower pistils, SEM

Flower pistil, SEM

Flower pistil, SEM

Carnation flower pistil, SEM

Carnation flower pistil, SEM

Carnation flower pistil, SEM

Yellow chamomile pollen grains, SEM

Yellow chamomile pollen grains, SEM

Evening primrose pollen grains, SEM

Evening primrose pollen, SEM

Evening primrose pollen, SEM

Evening primrose pollen, SEM

Sweet William pollen grains, SEM

Comfrey pollen grains, SEM

Comfrey pollen grains, SEM

Comfrey pollen grain, SEM

Chestnut pollen, SEM