The invertebrate animals are animals that have a backbone, so I do not have an internal skeleton articulated. For example: ants, spiders, bees, flies.
An essential characteristic of invertebrates is that throughout their life they undergo a metamorphosis as they change shape, until in adult life they acquire a defined shape: in this way, the offspring of adults can become very different.
- See also: Vertebrate animals
Invertebrates make up no less than 95% of all the existing species on the planet, a much higher number than animals that have vertebrae and an internal skeleton: there are almost a million species of invertebrate animals known in the world.
Some invertebrates are attracted by song to facilitate reproduction. A characteristic that can be generalized a bit more is their ability to move, which in any case is not verified in some class of invertebrates that has certain similarities with plants or amorphous objects.
Invertebrates do not have a specific habitat as some live in the air, others on land, and others in water.
- It can serve you: Viviparous animals
Classification of invertebrate animals
The number and different types of invertebrates may be difficult to imagine, but they constitute a large group that is roughly divided into those with bodily protection and those without.
Within the first group appear the arthropods (with articulated legs and a divided body, of which most insects , arachnids and crustaceans are part ), mollusks and echinoderms ; while worms (with a soft and elongated body), coelenterates and porifers (the group of invertebrates with the greatest plant-like appearance) appear in the group of those without protection , which lives in the sea subject to rocks or other objects).
Functions and Importance
Many of the species that make up the category of invertebrates have some function that is very useful for human beings: pollination , carried out by some of them, helps the flowers turn into fruits and seeds that will later feed people and others animals.
Some invertebrates are a vital food source for other animals, or they function in the pest control process.
Finally, some invertebrates act as decomposers and cleaners, as they eat fungi , bacteria or decomposing matter, turning it into compost to nourish the soil.
- See also: Oviparous animals
Examples of invertebrate animals
|House flies||Horsefly bombilius||Spiders|
|Digger wasps||Lemon butterfly||Hedgehog Butterfly|
|Machaon butterfly||Cabbage white butterfly||Long-legged spider|
|Potter wasps||Phytophagous beetle||Crab spider|
|Red bug, shoemaker||Curilla or oil can||Cicada or cicada|
|Ladybugs||Devil’s horse||Scolia wasp|
|Cockroaches||Peacock butterfly||Hackberry butterfly|
|Hummingbird sphinx butterfly||Sawblade wasps||Pearly butterfly|
|Beetles||Mediolute butterfly||Social wasps|
|Lesser Checkered Butterfly||Icarus butterfly||Bees|
|Grasshopper||Wild Wolf Butterfly||Centipede|