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Most fish reproduce using external fertilisation - the female lays her eggs, and the male then covers them with sperm, fertilising them. Some fish, however, use internal fertilisation. Sharks are an example. Males sharks have paired copulatory organs called claspers, one of which is inserted into the female's cloaca, depositing sperm inside her. In some species, eggs are then laid and will hatch after an incubation period, but in others the eggs are retained within the mother's body until the young are fully developed, when they are born alive.
What else can I help you with?
Do fishes reproduce sexually or asexually?
Fish reproduce by external sexual fertilization.
How do blob fishes reproduce?
Type your answer here... it does by eatig
What is the tem used to describe fish that migrate from freshwater to saltwater?
anadromous fishes - live in ocean reproduce in freshwater or catadromous fishes - live in freshwater but reproduce in saltwater amphidromus fishes - move between fresh and saltwater for non-reproductive reasons
When most bony fishes reproduce by external fertilization what does this mean?
By external it means that the process of fertilization does not happen within the body by outside, thus EXTERNAL.
Most bony fishes reproduce by external fertilization What does this mean?
By external it means that the process of fertilization does not happen within the body by outside, thus EXTERNAL.
What are the group of fish?
The major groups of fishes are that they can reproduce twice a day without any undeveloped process and the ink that Is incite of it's gills are common to there species
What are the characteristics of fishes?
They swim, they have gills, they live under water, they are sea creatures. They have fins, they travel in schools, they live underwater, and they have scales. Most fishes have gills, fins, and scales. Their skeletons are either made of cartilage and bone. they are cold blooded
What are the three major groups of fishes?
The three major groups of fishes are:Jawless Fishes-have no jaw, but a roundmouth, a tube like body made of cartilage (flexible, like your nose), no scales; have slimy skin. Examples: lamprey and hagfish (google them).Cartilaginous Fishes-skeleton made of cartilage, movable jaws, have scales. Examples: sharks, skates and rays.Bony Fishes-skeleton made of bone, 95% of all fish species, covered by bony scales, have a swim bladder (helps fish keep balance), reproduce by external fertilization called spawning; some species have internal fertilization. Examples: perch, bass, northern pike, salmon, and goldfish.Thanks to SIS for the Life Science notes, taken on Friday, May 21st.-sylvesterrose12
What are jeol fishes?
jeol fishes are fishes who have dual respiratory organs. rakesh
What is pairing in fishes?
pairing in fishes
Do medium fishes eat small fishes?
Medium fishes eat small fishes as that's just part of the food chain.
Do big fishes eat medium fishes?
Big fishes eat medium fishes as that's just part of the food chain.
