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They are aquatic.
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∙ 14y ago
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Most aquatic animals use?
external fertilization
Is fertilization external in most Arthropods?
External fertilization and development
What fertilization is most common among terrestrial animals?
Yes, internal fertilization is a reproductive strategy used by virtually all terrestrial animals. In aquatic environments, external fertilization is much more common.
How do animals fertilize plants?
Internal fertilization and external fertilization. Internal fertilisation means fertilize the egg inside the female's body. External fertilization is fertilize the egg after the female had lay it out. All mammals including platypus and spiny anteater do internal fertilization.
What kind of fertilization do most fish have?
Most fish have external fertilization. External fitilization is when the outside of a female body.
What type of fertilization requires A great excess of a sperm gametes because most are wasted?
Broadcast fertilization requires a great excess of egg and sperm gametes because most are wasted. Aquatic animals, such as starfish and sea urchin, mate in this manner.
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.
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.
Do crustaceans fertilize internally or externally?
Crustaceans use external fertilization rather than internal fertilization like most animals. The eggs are fertilized and then typically carried on the females body.
What kind of fertilzation do most fish have?
Most fish have external fertilization.
Is anura fertilization internal?
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.
Do amphibian have internal or external fertilization?
The modes of fertilization vary. Most frogs practice external fertilization, the females laying eggs in water and the males spraying sperm over them. Primitive salamanders have external fertilization, but most have internal fertilization, with the female taking up the male's spermatophore. All caecilians have internal fertilization, and the male deposits sperm in the cloaca of the female by using the end of his cloaca as an intromittent organ.
