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Why are there more egg and sperm cells produced during external fertilization than during internal fertilization?
Why are there generally more eggs and sperm cells produce during external fertilization thean internal fertilization
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What mosquito housefly eagle turtle and dog undergo internal-external fertilization?
External fertilization occurs when sperm and eggs unite in the open, rather than within specialized organs during internal fertilization. Turtles, eagles, and dogs most definitely undergo internal fertilization. Mosquitoes and houseflies, on the other hand, undergo external fertilization.
Is penguin fertilization internal or external?
Penguin fertilization is internal. The male penguin transfers sperm to the female's reproductive tract during copulation.
Does a newt have internal or external fertilization?
Internal
Do cats have internal fertilization or external fertilization?
Tigers have Internal Fertilization. (occurs inside the body). Tigers copulate frequently and noisily and repeatedly for 5 or 6 days. Each usually take about 20 to 30 seconds. Then the gestation period is 16 weeks.
Do butterflies have internal skeletons or external skeletons?
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.
Do earthworms use internal or external fertilization?
Earthworms use internal fertilization. During copulation, sperm is transferred from male to female through the male's specialized structures called seminal vesicles. The female then stores the sperm in her spermatheca until she is ready to fertilize her eggs.
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.
Does barracuda have internal or external fertilization?
the Barracuda likes to live in fresh water and they love to give externally
Where does fertilization take place in a reptile?
In reptiles, fertilization usually takes place internally inside the female's body. Male reptiles deposit sperm inside the female through cloacal contact during copulation. The sperm then fertilizes the eggs within the female's reproductive tract.
What type of fertilization do toads have?
Toads have external fertilization. During mating, the male toad releases sperm onto the eggs as the female lays them.
DO gray wolves have internal or external fertilization?
Gray wolves have internal fertilization. During mating, the male and female wolves engage in a reproductive process where the male's sperm fertilizes the female's eggs inside her body. This internal fertilization is typical for mammals, including wolves, ensuring the protection and development of the embryos within the female until they are ready to be born.
What are the similarities of internal external fertilization?
Internal fertilization takes place inside the body of the female. It is necessary for animals which live on land (terrestrial animals) and is retained by aquatic animals descended form terrestrial ancestors eg whales and dolphins. External fertilization takes place outside the body of the female. It usually takes place in water, usually the environment in which the animal lives eg fish and amphibians. This is because eggs and sperm would dry out and die if they are not kept wet. Internal fertilization is more certain than external fertilization so fewer eggs need to be produced. After internal fertilization eggs can be protected and fed while developing inside the mother's body. After external fertilization the eggs are potentially exposed to predators and so must either be produced in very large numbers or protected by the parents or both.
