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Is an egg from a duck fertilized upon laying if a male is present and has mated with the female or does fertilization occur after laying?
Wiki User
∙ 14y ago
As with chicken eggs, fertilization occurs prior to laying the egg. It takes a week after mating for a duck's eggs to be fertile.
Wiki User
∙ 14y ago
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Is rainbow trout fertilization external or internal?
As with many other fish, the female trout lays her eggs, and the male trout releases his semen over them, so that the eggs are not fertilized inside the female fish.
My hen and rooster are very young the hen has only started laying is it too soon for the eggs to be fertilized?
They eggs will be fertilized about a week after the rooster consistantly starts to mount the female.
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.
Do salamanders have internal or external fertilization?
Frogs use external fertilization. both mates will excrete mucus out of their bodies... the mucus contains their sex cells... therefore, the male and female mucus will mix up and causes fertilization. External, the female lays eggs onto small braches, leaves or rocks in a pond/ river or close to a water source, the male then fertilizes them (externally), in most cases as the female is laying the eggs
What is the egg laying process called?
Oviparous animals are known to lay eggs. Some egg laying species are internally fertilized while some are externally fertilized.
What is the present continuous tense for the word 'lay'?
The present continuous tense of 'lay' is 'is laying' or 'are laying'.
What is the name the egg-laying part of some female insects?
The egg-laying tube on a female cricket is called an ovipositor.
Can hens that are feed only with laying egg production lay fertilized egg?
No. they can if they have a rooster though
How is internal and external fertilization similar?
-produce a large number of sperm and egg cells -no parental care for developing embryos -The gametes are protected from a harsh enviroment -The gametes are protected from predators
Do you have to throw away the first egg laid from a first laying hen?
because it is the most likely on to be fertilized
Is laying an adverb of lay?
No, "laying" is the present participle form of the verb "lay." It is not an adverb. An adverb modifies a verb, adjective, or other adverb, but "laying" functions as a verb in this case.
Why does organisms that use internal fertilization produces less offspring than the ones that use external fertilization?
Because internal fertilization requires a womb and placenta to protect and nourish the growing embryos - which limits the number of offspring the mother can produce. Laying eggs outside the body means the female can potentially produce many more off-spring, and thus vastly increase the chances of the species survival.
