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The vertebrates and invertebrates
Transcript of The vertebrates and invertebrates
Vertebrates are a group of animals with an articulated internal skeleton, which acts as a support of the body and allows its movement. Have spine.
The vertebrates are divided into five groups:fish, amphibians, reptiles, birds and mammals.
Most fish are oviparous. They they have fins and scales. They live in salt water and fresh water. Sharks, eels and seahorses are fish.
They are viviparous. There
have a beak, wings and then bodies
have feathers. Some birds, like hawks, can
fly. Others, like penguins, cannot fly.
Have mammary glands that produce
milk with which the feed the offspring. The ma-
jority are viviparous except the monotremes: platipus,
and echidnas. Constitute a very diverse groups of living
Amphibians have the ability to live
both inside and outside the water, however,
their skin needs to be contantly moistenedas it
funtions as a breathing medium for the animal. Although
almost alt amphibians animals have lings they have an
extremely simple estructure .Both frogs and toast have ears
and a hearth of superior complexiluam pared. They are oviparous
Invertebrates are animals that
neitter posses nor develop a vertebral
column. The invetebrates include five groups:
They have the soft body and without
forming rings,they can have a shell with
one or two shells, produced by the mantle, they
move for a muscular cake of different forms, brea-
the through lungs or gills and they are oviparous.
Echinoderms are animals with radial symmetry
ie the parts of the body are located around a center.Echinoderms have calcareous plaques Articulated together or welded into a shell. Live exclusively in the marine environment. They are oviparous
Annelids are segmented cylindrical worms.
They have bilateral symmetry, are soft-bodied and lack a skeleton.
Among the annelids are species that live on land (earthworms), freshwater (leeches) or the sea (gusarapas and nereis).They are oviparous
They have an external skeleton (exoskeleton) made of a polysaccharide (carbohydrate) called chitin. This skeleton allows them to be strong and resistant.
In addition, arthropods have articulated legs, although their numbers vary according to the type of arthropod.
Live in all media.
They are oviparous.
They are oviparous. They have
four lims and their bodies have scales. They
move on land or in the water. Their bodies Can be
different: a snake has no limbs and a tortoise has a shell.
Equinoderms, arthopods, moluscs and annelids