3. Introduction
Invertebrates are living beings.
They are the most numerous group of animals
on Earth.
Can be terrestrial or aquatic
They are heterotrophs
They are multicellular
They have eukaryotic cells
5. 1.CELENTARATS
How are they?
Are shaped like a bag
They have tentacles
all live in the water
animals are very ancient
they have eyes
some have exterior skeleton
no need respiratory system
reproduction
can be sexual or asexual
usually asexual
in the case of jellyfish usually sexual
6. 2.THE SPONGES
As they are?
are simple invertebrates
all are marine
plankton feed
Reproduction
reproduce asexually
Curiosities
can be used as sponges shower
7. 3.EQUINODERMS
How are they?
They mouth the center of the crawler body slowly
Reproduction
is sexual
fertilization and development is in water
Breathing through some small branches or through ambulcrals feet.
Where do they live? on coral reefs
Curiosities
There are over 7,000 and 13,000 extint spices.
When they are broken limb after a fear them and regrow
Examples:
Starfish
Sea urchins
Ofiures
Sea lilies
8. 4.ANNELIDS
Power:
of marine plankton feed.
have internal digestion
Breathing:
it is through the skin
Reproduction:
is sexual or asexual
are oviparous
9. 5.2.ARTHROPODS
How are they?
have the body covered by exoskeleton must move
exoskeleton several times
Breathing:
The aquatic breathe Braques
The lungs breathe land
Reproduction:
is sexual
There are males and females often with some clear
difference
There are examples of hermaphrodites
can be oviparous, ovoviviparous or viviparous
10. 5.INSECTS
How are they?
have two antennae and six pairs of legs
are living terrestrial and freshwater
know more than a million of species
12. 5.3.MIRIAPODS:
How are they?
are terrestrial
have two antennas and several feet (10 to 200)
Respiration
have tracheal breathing
13. 5.4.ARACHNID
Food:
are carnivores.
Reproduction:
have separate sexes with an important difference.
Breathing:
breathe through gorges.
Curiosity:
they do not have antennae sole have one or more pairs
of simple eyes. In some cases these eyes are very
effective for his life.
14. 6.FLATWORMS NEMATODES
How are they?
have a soft body, elongated, sometimes divided up into segments and in
the case of smooth plains
Where do they live?
may be free-living, living in calm waters or in very humid
parasites such as tapeworms can live in the body and vertebrates
Food
which are free living: they can be carnivorous or herbivorous
parasites: they eat the animal feed which are parasites
How to breathe?
breathe through skin
Reproduction
many are hermaphrodites
15. 7.MOLLUSCS
How are they?
have a soft body and is covered with a wet skin
most have shell
have no legs
can live in water and on land
Reproduction
is sexual
some have separate sexes
Some are hermaphrodites
17. 7.2.BIVALVES
How are they?
have the body plan
head no different
use the foot to be buried
are water
filter the water to catch food
shell have divided into two parts
Examples:
clam
European oyster
Japanese oyster
18. 7.3.CEPHALOPODS
How are they?
have highly developed senses
do not peel or have a very small interior
Ink can have a bag to fend
are divided on foot and tentacles attached to the
head
Food
are carnivores
Example:
Common pop / rock
squid
19. CONCLUSION
at first did not want to invertebrates, but
in the end we liked and we have learned
many things
BIBLIOGRAPHY
the videos that gave Blanca
Viquipedia
SlideShare
