acrosome, flagellum

rotifer, ovules, oviducts, morula, zygote, conceptus, glans, zona pellucida, epididymis, homologous chromosomes, spermatic cord, amniotic cavity, embryonic tissue, amnion, macromolecule, blastomeres, prokaryote, vas deferens, ovum, prepuce, gametes, fertilized ovum, xenopus laevis, tubule, spicule, fallopian tube, yolk sac, teratoma, gonad, hyphae, erectile tissue, plasmodium, cloaca, inguinal canal, somites, sperms, covalent bond, ectoderm, mosaicism, ejaculates, trophoblast, palps, leiomyoma, hemolysin, umbilical vein, mesenchyme, corpus luteum, sporozoite, virion, motile, anthers, uterine cavity, plastron, flatworm, ostracods, epicardium, papilloma, micelle, tubercles, adduct, pelvic cavity, copulatory, pelvic girdle, ovipositor, chlamydia trachomatis, anus, smegma, glans penis, protozoan, solutes, acrosome, lobules, agarose, spinnerets, meshwork, amniotic sac, horseradish peroxidase, mycelia, fertilized egg, spirochete, oocyst, agrobacterium tumefaciens, periosteum, merozoites, hamartoma, flagellum, pneumocystis, pistil, planetesimal, brood pouch, reticulum, chromatid, capsid, nucleocapsid, micrograph, tribolium, agglutination, droplet, entamoeba, peduncle, microinjection, nephrons, sperm, spermatozoa, gamete, organism, embryo, foetus, chromosome, spore, embryos, oocyte, ova, fetus, placenta, starfish, amoeba, cell

conception, fertilization membrane, fertilized ovum, germ cell, reproductive cell, sex cell, spermatid, zygote

ejaculate, male reproductive system, seed, semen, seminal fluid

sperm cell