By external it means that the process of fertilization does not happen within the body by outside, thus EXTERNAL.
By external it means that the process of fertilization does not happen within the body by outside, thus EXTERNAL.
External!External fertilization takes place in fishes. This means that the sperm cell of a male is linked together with the egg cell of a female in the external bodies of the individual fish.
Fishes and most amphibians (frogs, toads, etc.)
As with most amphibians the fertilization is external. The female releases the eggs and the male fertilizes them. Amphibians, even toads, need water to reproduce.
Arthropods reproduce sexually . Fertilization is mostly internal but in some species it is indirect . In most arthropods fertilization is direct . Most arthropods are oviparous i.e. they lay eggs . Metamorphosis takes place .
External fertilization and development
Most fish have external fertilization. External fitilization is when the outside of a female body.
Butterflies reproduce by internal fertilization and not by external fertilization. Butterflies, like most insects, will then lay the eggs and wait for them to hatch.
internal
Internal fertilization .
Most amphibians have external fertilization, so outside the body.
They are aquatic.