Do echidna have internal or external fertilization?

Answer 1

Internal,

Corn snakes usually breed shortly after the winter cooling. The male courts the female primarily with tactile and chemical cues, then everts one of his hemipenes, inserts it into the female, and ejaculates his sperm. If the female is ovulating, the eggs will be fertilized, and she will begin sequestering nutrients into the eggs, then secreting a shell.

Egg-laying occurs slightly more than a month after mating, with 12-24 eggs deposited into a warm, moist, hidden location. Once laid the adult snake abandons the eggs and does not return to them. The eggs are oblong with a leathery, flexible shell. Approximately 10 weeks after laying, the young snakes use a specialized scale called an egg tooth to slice slits in the egg shell, from which they emerge at about 5 inches in length. (source Wikipedia)

Answer 2

i dont know ask yo mamma or some1. tell my mom i said hi!

Answer 3

male snakes then fertilize the eggs after they have come out of the mother

Answer 4

Like all reptile rattlesnakes use internal fertilization. The only vertebrates that use external fertilization are many fish and amphibians.

Answer 5

snakes are internal

Answer 6

Internal