Science, asked by muskan261490, 11 months ago

most of the aquatic animals lay eggs in running what still there is external fertilization occurring in most decorative animals how is it possible​

Answers

Answered by duadevansh58
9

Answer:External fertilization is characterized by the release of both sperm and eggs into an external environment; sperm will fertilize the egg outside of the organism, as seen in spawning.

The release of the reproductive material may be triggered by water temperature or the length of daylight. Nearly all fish spawn, as do crustaceans (such as crabs and shrimp), mollusks (such as oysters), squid, and echinoderms (such as sea urchins and sea cucumbers). Pairs of fish that are not broadcast spawners may exhibit courtship behavior. This allows the female to select a particular male. The trigger for egg and sperm release (spawning) causes the egg and sperm to be placed in a small area, enhancing the possibility of fertilization.

Explanation:

Answered by aman59840
9

Answer:

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