External fertilization means that it takes place outside of the body, which also means the eggs and sperm are exposed to a lot more danger, and that the chances of a successful fertilization are lower.
Because of this, the amounts produced are much higher to give a reasonable chance that there will be offspring.
oviparous animals live in more harsh environment and thus lay large number of eggs compared to viviparous animals. this high multiplication ensures that few of the eggs get fertilized (external fertilization) and develop into young once.
Animals that undergo external fertilization include many fish, amphibians, and aquatic invertebrates. Species like salmon, frogs, and sea urchins release eggs and sperm into the water, where fertilization occurs outside the body. This method often requires moist environments to prevent gametes from drying out and to increase fertilization success. visit our website: www. sathayatravels .com/about
External fertalisation is when the eggs are outside the body and the sperm is droped into them allso outside and the babys grow outside the body like fish eggs!!! If you want to see a little clippet of baby eggs watch finding nemo!!!!!!!xoxoxoxoxoxoxoxoxoxoxoxoxoxoxoxo
Cold-blooded animals reproduce through a process that typically involves internal or external fertilization. Some lay eggs, while others give birth to live young. They often rely on environmental cues, such as temperature, to determine when to reproduce.
Animals that reproduce through external fertilization typically produce a large number of eggs because there is lower chance of each egg surviving to adulthood. In contrast, animals that reproduce through internal fertilization often produce fewer eggs but invest more energy and resources in caring for them due to higher survival rates. This relationship is influenced by the species' reproductive strategy and environmental conditions.
produce more eggs
There are thousands of such vertebrates as bony fishes .
Internal fertilization is like animals having sex....the egg is fertilized on the inside. External is when the egg is fertilized on the outside (like when frogs lay eggs and they need to be fertilized before they can hatch).
The term "external reproduction" for higher animals means in eggs rather than internally. So the hawk reproduces externally, laying and hatching its eggs.
all animals have eggs, but it depends their fertilization development type (which is either internal or external). Humans are mammals, and all mammals give live birth unless it is a monotreme, which lays eggs.
oviparous animals live in more harsh environment and thus lay large number of eggs compared to viviparous animals. this high multiplication ensures that few of the eggs get fertilized (external fertilization) and develop into young once.
Take any animal that has external fertilisation. Each of these eggs has only a small chance a) being fertilised in the first place and b) actually surviving to hatch, so to speak. So many eggs are laid at once to increase the chance that there will be a decent amount of offsping. Also bear in mind that alot of the offspring won't make it past the early stages of life due to predators etc.
Portuguese Man o' War do not lay eggs. They are marine animals known as siphonophores, made up of different specialized animals called zooids working together as one organism. They reproduce by releasing sperm and eggs into the water for external fertilization.
External. In most cases, adults release sperm and eggs into the surrounding water, where the (unprotected) eggs are fertilized and mature into new organisms.
Internal because they give birth and not lay eggs. If they lay eggs, they would be like a chicken. ~Savannah B.
Oviparous animals lay eggs.
External, because they lay eggs.