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Animals

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Estefanía Amórtegui

on 11 April 2013

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Transcript of Animals

Natalia Chaves
Estefanía Amórtegui
Daniela Abaunza
Cristian Cardona
Juan Camacho ANIMALS MAMMALS There aren't the bigger species but is the most studied by biologists,
and the most dominant REPTILES FISH Amphibians Amphibians are vertebrates that are characterized by having her bare skin, scales and have metamorphosis. The term amphibious means living in two different environments. At birth live in water, breathe through gills and no have legs, just a long tail that helps them to swim, as adults your breathing is with lungs and have four legs and some have tails. Adult amphibians live in water and on land. Morphology Anurans, represented by frogs and toads, with hind legs adapted for jumping, and no tail in the adult Cecilians, legless. Urodeles, typical case bodied newts
like those of lizards. Adult amphibians are carnivores and will eat live
prey general, tadpoles are omnivores. Their feeding
varies greatly among different groups. Feeding Breathing Gills breathing Cutaneous breathing Occurs because your skin is always kept
moist, which lead to a mucus-secreting glands Pulmonary breathing Different species of amphibians have lungs
with varying degrees of development. Reproducing In general, reproduction is sexual, reproduce by eggs (oviparous). External fertilization in frogs and toads (Anura) and internal fertilization in newts and salamanders (urodeles). Whit three pairs of gills similar of fish, although
in this case external gills are treated. Mexican Axolotl Examples of amphibians Salamander Newts Toads Frogs Arthropods Generalities :: It is the phylum more numerous and diverse Characteristics * Invertebrate animal * Exoskeleton (external skeleton) * Segmented body * Jointed appendages REPRODUCTION All terrestrial species use internal fertilization, Aquatic species use either internal or external fertilization. Direct development : Indirect development: CHARACTERISTICS The mammals are always
vertebrates. The females mammals produces
milk for its' calfs feed. The body of this specie , is usually
protected by hair. ANATOMY REPTILES speaking of reptiles, we refer basically to lizards, crocodiles, snakes and turtles, this kind of animals are the ancestors of both mammals and birds. His body is covered with scales.
His limbs are shaped legs, which are usually very short. Some reptiles, like snakes, legless.
Your body temperature is variable, they are cold-blooded animals. So often live in hot, and become dormant during winter.
They breathe with lungs. Reptiles have these characteristics: Most are carnivores. In the mouth often have many teeth, all the same size, with those who hold their prey.
Are oviparous, ie eggs are reproduced.
His fertilization is internal. The male mates with the female and fertilized eggs are formed. The female lays eggs on the grass or buried.
Some reptiles, like the snake are ovoviviparous: The eggs hatch inside the mother's body and the young are born alive. EXAMPLES: Fish are aquatic animals that live in the sea, river, pond and other places where there is water. They have features such as: They are vertebrate animals They have skeleton bony or cartilaginous fins to move through the water. His body is covered with scales or dermal denticles. They breathe through gills the oxygen that is dissolved in the water.
Your reproduce is by laying eggs Fish are a group of animal of great economically importance and food for man.
The fish are used as: Food that can be consumed:
prepared: cooked and roasted Fish with most amount of vitamins are: the cod, tuna and sharks. Further are many people living of all type of activities related with fishing. Nervous system:
Brain
Nerves
Spinal Digestive apparatus
Mouth
Throat
Stomach
Intestines Respiratory:
Nose
Lungs
Trachea
Pharynx The reproductive in males
and females isn't the same.

The males haves:
Testicles , penis , prostate, seminal vesicle
The females haves:
Vagina, utero , ovaries , Fallopian's tube FEED Often the mammals
are herbivores Sometimes the mammals
are carnivores Usually the mammals
are omnivores Habitats Any mammals like a whales
lives in an acuatic habitat The most popular habitat is the
terrestrial Domestic animals Wild animals Examples Cats Whales Dolphins Tigers Bears Dogs Giraffe Elephant Kangaroo Monkey Reptiles have these characteristics:
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