• Use this resource to answer the questions that follow.
  • In most fish species, fertilization takes place externally.
  • Eggs are laid and embryos develop outside the mother’s body.
  • Many adults of the same species may come together in a group and release gametes into the water at the same time, which is called spawning.
  • A larva swims attached to a large yolk sac, which provides the larva with food.
  • The larva eventually goes through metamorphosis and changes into the adult form.
  • However, it still needs to mature before it can reproduce.
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