Upload
elenco51
View
602
Download
2
Embed Size (px)
DESCRIPTION
Citation preview
MAMMALSMAMMALS
Aitor, Diego and Mart Aitor, Diego and Mart 11stst A (ESO) A (ESO)
IES COMARCALIES COMARCAL
Introduction about vertebrates Mammals: body parts Mammals’ functions: Respiration, Nutrition,
Reproduction and Interaction Habitat Groups Curiosities References
SummarySummary
Introduction about vertebrates
They have an endoskeleton with a backbone..
They have a head, a trunk and, many of them, a tail.They have a head, a trunk and, many of them, a tail.
They have a well-developed nervious system, articulated limbs and They have a well-developed nervious system, articulated limbs and
bilateral symmetry.bilateral symmetry.
Head Spinal columnHead Spinal column
TrunkTrunk
Articulated limbs Tail Articulated limbs Tail
TailTail
Mammals: body partsMammals: body parts The neck joins the head and the trunk.
Their bodies are covered with hair or fur which keeps them warm.
They have teeth and mammary glands that produce milk.
Mammals’ functionsMammals’ functions
Respiration They use lungs to breathe
Nutrition
They feed on different
things:
carnivorous,
herbivorous and
omnivorous
Mammals’ functionsMammals’ functions
ReproductionMammals are viviparous. They feed on their mother’s milk
InteractionMammals are homeothermal or warm-blooded
HabitatHabitat
Most mammals are terrestrial. Others, like dolphins, are
aquatic.
GroupsGroups
There are three different groups:
Monotremes Marsupials
Placentals
1. The heart of a whale has the same weight as a small
car.
2. Rhinoceros’ horns are made up of fur.
3. The smallest mammal over the world is the
hog-nosed bat from Thailand.
4. Elephants can’t jump.
5. There are 701 races of dogs .
Curiosities: Curiosities: Did you know Did you know that…?that…?
6. Jiraffes can clean their ears with their tongue.
7. Dolphins sleep with one eye open .
8. A koala sleeps 22 hours every day.
9. Rats reproduce themselves very fast : in 18 months
rats can have more than 1 million of descendents.
10. Camels have three eyelids to protect them from
sand flying around them.
Curiosities: Curiosities: Did you know Did you know that…?that…?
- “Essential Natural Science”. First ESO. Ed.
Santillana
- http://listas.20minutos.es/lista/1oo-curiosidades-del-re
ino-animal
- http://www.taringa.net/posts/imagenes
- https://sites.google.com/site/
adoptaexoticovalencia/no-apto-paraadultos/
curiosidades-del-reino-animal
ReferencesReferences
Thanks for Thanks for
your attention!your attention!