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23 relations: Asiatic salamander, Benthic zone, Caudata, Cod, Fertilisation, Frog, Gamete, Giant salamander, Great Barrier Reef, Internal fertilization, Invertebrate, Molality, Ovule, Salmon, Salvelinus, Semelparity and iteroparity, Sexual intercourse, Sexual selection, Sexual selection in amphibians, Sirenidae, Spawn (biology), Sperm chemotaxis, Trout.
Asiatic salamander
The Asiatic salamanders (family Hynobiidae) are primitive salamanders found all over Asia, and in European Russia.
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Benthic zone
The benthic zone is the ecological region at the lowest level of a body of water such as an ocean or a lake, including the sediment surface and some sub-surface layers.
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Caudata
The Caudata are a group of amphibians containing the salamanders (Urodela) and all extinct species of salamander-like amphibians more closely related to salamanders than to frogs.
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Cod
Cod is the common name for the demersal fish genus Gadus, belonging to the family Gadidae.
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Fertilisation
Fertilisation or fertilization (see spelling differences), also known as generative fertilisation, conception, fecundation, syngamy and impregnation, is the fusion of gametes to initiate the development of a new individual organism.
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Frog
A frog is any member of a diverse and largely carnivorous group of short-bodied, tailless amphibians composing the order Anura (Ancient Greek ἀν-, without + οὐρά, tail).
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Gamete
A gamete (from Ancient Greek γαμετή gamete from gamein "to marry") is a haploid cell that fuses with another haploid cell during fertilization (conception) in organisms that sexually reproduce.
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Giant salamander
The Cryptobranchidae are a family of fully aquatic salamanders commonly known as the giant salamanders.
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Great Barrier Reef
The Great Barrier Reef is the world's largest coral reef system composed of over 2,900 individual reefs and 900 islands stretching for over over an area of approximately.
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Internal fertilization
Internal fertilization is the union of an egg cell with a sperm during sexual reproduction inside the body of a parent.
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Invertebrate
Invertebrates are animals that neither possess nor develop a vertebral column (commonly known as a backbone or spine), derived from the notochord.
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Molality
Molality, also called molal concentration, is a measure of the concentration of a solute in a solution in terms of amount of substance in a specified amount of mass of the solvent.
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Ovule
In seed plants, the ovule is the structure that gives rise to and contains the female reproductive cells.
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Salmon
Salmon is the common name for several species of ray-finned fish in the family Salmonidae.
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Salvelinus
Salvelinus is a genus of salmonid fish often called char or charr; some species are called "trout".
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Semelparity and iteroparity
Semelparity and iteroparity are two classes of possible reproductive strategies available to living organisms.
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Sexual intercourse
Sexual intercourse (or coitus or copulation) is principally the insertion and thrusting of the penis, usually when erect, into the vagina for sexual pleasure, reproduction, or both.
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Sexual selection
Sexual selection is a mode of natural selection where members of one biological sex choose mates of the other sex to mate with (intersexual selection), and compete with members of the same sex for access to members of the opposite sex (intrasexual selection).
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Sexual selection in amphibians
Sexual selection in amphibians involves sexual selection processes in amphibians, including frogs, salamanders and newts.
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Sirenidae
Sirenidae, the sirens, are a family of aquatic salamanders.
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Spawn (biology)
Spawn is the eggs and sperm released or deposited into water by aquatic animals.
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Sperm chemotaxis
Sperm chemotaxis is a form of sperm guidance, in which sperm cells (spermatozoa) follow a concentration gradient of a chemoattractant secreted from the oocyte and thereby reach the oocyte.
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Trout
Trout is the common name for a number of species of freshwater fish belonging to the genera Oncorhynchus, Salmo and Salvelinus, all of the subfamily Salmoninae of the family Salmonidae.
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References
[1] https://en.wikipedia.org/wiki/External_fertilization
