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Why do some animals fertilize only one egg at a time while others fertilize multiple eggs?
Wiki User
∙ 13y ago
It's an evolutionary adaptation.
Higher order predators with few natural enemies produce fewer offspring because to produce many would deplete their food supply and result in mass starvation.
Prey species have to produce a great number of offspring to ensure enough mating pairs survive the predators and perpetuate the species.
Wiki User
∙ 14y ago
Wiki User
∙ 13y agoThe reason behind this depends on what animal your looking at. If the animal only lays one or two eggs, it has to be good enough parent to look after them. If it lays multiple eggs, like a frog, it lays these because many will be eaten and the chances of a frog egg becoming an adult frog is slim, only about 5 of the 200 eggs the female lays will make it adult life.
Wiki User
∙ 11y agoIn species who have a large chance of survival of offspring there are usually a small amount of eggs produced. In species who have a small chance of survival of offspring there are usually a large amount of eggs produced. There is a correlation between the survival rate of offspring and the amounts of eggs produced.
Wiki User
∙ 15y agoThey want their kind to stay alive forever.
Wiki User
∙ 13y agoall animals lay eggs. except for the armadillo, who reproduces using asexual reproduction.
Wiki User
∙ 13y agobecause they have different fertilization and different breeds.................
Wiki User
∙ 11y agoWell if we humans make lots of eggs and for example lots of predeters wanted to eat us then at least some of us will survive
Wiki User
∙ 11y agoSo many get eaten
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What are the specialized structures that animals use in feeding?
There are many specialized structures that animals use in feeding. Some animals use sharp teeth while others use sheer arm power.
Why do you think there is a basic difference between the kinds of fertilization most common in aquatic and terrestrial animals?
the process of fertilization involves fusion of egg/ova and spermatozoa. the two cells are also called gametes. for their meeting aqueous medium is required. in land animals out side environment is dry therefore fertilization on land is not possible while as genital tract provides similar aqueous atmosphere where spermatozoon swim to reach the egg.
What do cold blooded animals eat?
Cold blooded animals are called reptiles. These species include snakes and lizards. Some reptiles eat smaller animals such as mice, while others eat a variety of plants.
Does human urine attract animals?
Some do, while I can't list examples some are attracted to it and will follow a scent. While most others avoid it and will run the opposite direction.
What animals are NOT scavengers?
Most animals are not scavengers. Scavengers include vultures, hyenas, and catfish. Most animals are herbivores (horses, sheep, rabbits, pandas) while others are carnivores, such as lions, tigers, and alligators. Some, like bears, can be omnivores, consuming both plants and animals.
Why do some animals fertilize only one egg at a time while some animals fertilize multiple eggs?
it all has something to do with their uterouse
Why do animals fertilize only one egg at a time while some animals fertilize multiple eggs?
cause they're lazy bums
Why do some animals fertilize only one egg at a time while other animals fertilize multiple eggs?
It has something to do with the fecundity of the organism. Some organisms release only one egg at a time, so only one egg gets to be fertilized. Smae goes with the animals that release multiple eggs at once, the eggs can be fertilized all at the same time.
Why some birds have multiple colors while others have one color?
Bird coloring is a delicate balance between keeping away from animals that would eat them and the need to be bright and colorful to attract females to mate with.
What do animals like to eat?
Some animals eat meat, some eat plants, while others eat both.
Why some animals have sharp teeth while others dull teeth?
It depends on what they eat
Why do some animals have large ear flaps while others don't?
It is probably just what environment they have evolved to.
What are facts on protista?
Some contains chloroplasts while others don't. Some photosynthesize while others get food from other plants and animals. All protists contain a true nucleus and a cell membrane.
What is mono estrous animals?
Mono estrous animals are animals that can only reproduce once a year. Some female animals can only get pregnant once a year, while others can have babies several times a year.
What are the specialized structures that animals use in feeding?
There are many specialized structures that animals use in feeding. Some animals use sharp teeth while others use sheer arm power.
What animals do killer whales prey on?
It depends. Some will actually go after whales, while others prefer seals.
Why do some animals have sharp teeth while others have dull teeth?
because some are prey and some are predators
