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INVERTEBRATES(1)Biel Serra Rubio
and Marcel Boldu Fernandez
Index:The invertebrates.Description and parts. The life of invertebrates. Relation with humans.
Invertebrates are animals without a backbone, they are pluricelulars and eukaryotes. Are ovipars. There are such groups:Gastropods Bivalves Cephalopods InsectsArachnids CrustaceansMiriapods
Gasteropods
The gasteropods have five important parts:The mouthThe stomachThe shellThe anus andthe heart.
Bivalves
The parts of the bivalves are very similar than the parts of the gasteropods:
The mouthThe footThe shellThe mantleAnd the siphons (exhalant-inhalant)
CEPHALOPODS
The cephalopods are animals very weird. He have tentacles, and, there are many in each tentacle suckers.In this family are: octopus, sepia and squid. But are other animals of this family they have characteristics very similars.
INSECTS
lThe insects are commonslbecause they are alllthe world except the poles.lAre a lots of tipes of insects inlthe Earth, and therelapprloximalety 350.000 known species of insects.
Abdomen
Head
Thorax
Eyes
Antennae
ARACHNIDS
lIn the group of the arachnids are very few of species: lThe spiderslThe fleaslThe miteslAnd the scorpions.
CRUSTACEANSCrustaceans are canival, eat their own species. All crustaceans live in the sea and the rivers.He have a thin shell and freacualy a big Tweezers.
Antennae
Tweezers
AbdomenCephalothorax
MIRIAPODSThe miriapods tend to have many legs and are very weird. In this family of invertebrates are the:MillipedesScalopendraAnd centipedeTend to have a exoskeleton.
The life of the invertebratesGasteropods: Are herbivorous, do not usually live in extreme climates.
Bivalves: Usually live in beaches and the sea, and have a shell, some are carnivores and other herbivorous.
Cephalopods: They live in the sea, are carnivores and in cases of emergency can remove ink to confuse the predator.
Insects: Are very casuals in the world. Are carnivores and other are herbivorous and canivals. They have an exoskeleton.
Arachnids: Have eight legs and live in all the world.
Crustaceans: Live in the sea or the rivers. Have an exoskeleton.
Miriapods: Usually are biger than other invertebrates. Are carnivores.
THE RELATIONSHIP OF THE INVERTEBRATES WITH THE
HUMANS:There are many
species of invertebrates in the
world and this makes them quite typical animals in
our lives
In Asia some invertebrates are
typical food.
BIBLIOGRAPHIAll this information provides
from Internet
Conclusion:Something that has not
been an overnight.
Learning:There are many types of invertebrates and
they are all very different.
ByeTHANKS FOR WATCH