VERTEBRATES

• Nice pictures as introduction

• http://www.xatakafoto.com/concursos/los-finalistas-de-la-xi-edicion-del-concurso-fotografico-del-instituto-smithsonian-nos-muestran-imagenes-impactantes

• http://news.distractify.com/culture/arts/macro-photos-of-snails/?v=1

• Video about vertebrates. At the end of the lesson

• http://www.youtube.com/watch?v=IT_y1jOoaXc

Vertebrates. How many groups are there?

• Fish

• Amphibians

• Reptiles

• Birds

• Mammals

ALL VERTEBRATES HAVE

• ENDOSKELETON with a BACKBONE

• HEAD, TRUNK AND some with a TAIL

• ARTICULATED LIMBS

• WELL-DEVELOPED NERVOUS SYSTEM

• BILATERAL SYMMETRY

THERMIC REGULATIONEndothermic or exothermic?

The lizard is exothermic or endothermic?SUNRISE

MIDDAYSUNSET

Sustituir en el libro

• Donde pone:

–Homeothermal/ Warm-blooded

escribir ENDOTHERMIC

–Poikilotherms/Cold-blooded escribir EXOTHERMIC

EXOTHERMIC ANIMALS

• Obtienen el calor del medio externo

• NO Tienen distintos mecanismo para estabilizar su temperatura.

• Regulan temperatura por medio del comportamiento. Ej. Lagartos

• Fish, amphibians, reptiles

ENDOTHERMIC ANIMALS

• Capaces producir calor por si mismos.

• No dependen del medio externo

• Tienen un mecanismo interno de regulación de la temperatura corporal

• Birds, mammals

EXOTHERMIC VERTEBRATES

• FISH

• AMPHIBIANS

• REPTILES

ENDOTHERMIC VERTEBRATES

• BIRDS

• MAMMALS

Eggs can be

• Non-amniotic

• Amniotic

Huevo amniótico (Amniotic egg)

• Protegido por una cáscara• Rodeado por varias membranas• Permite intercambio de gases• Evita la pérdida de agua• Independencia del medio

acuático• Presente en REPTILES Y AVES.

Huevo amniótico

FISH• Are they terrestrial or aquatic?• Do they live in salty or fresh water?• What are their main characteristics?

– They have:• SCALES• FINS• GILLS• A fusiform body, they are wider in the middle that at the

ends.• LATERAL LINE SYSTEM, a sensory organ that detects

vibrations.

– Endothermic or exothermic?

Groups of fish

• Two groups:– CARTILAGINOUS FISH. The skeleton is

made of cartilage• EXAMPLES?

– Sharks , rays

– BONY FISH. The skeleton is made of bone• Carp, salmon, trout, cod, hake

• Go to page 76 in your book. Identify the main differences between cartilaginous and bony fish.

Cartilaginous fish Bony fish

Gills without operculum Gills with an operculum protecting them

Cartilaginous skeleton Bony skeleton

Caudal fin divided in two halves of different sizes

Caudal fin divided in two equal halves

Without scales, small denticles

With scales

• Bony fish, oviparous, external fertilisation.– With a swim bladder

• Cartilaginous fish, sharks can be oviparous or ovoviviparous and fertilisation takes places internally.– Without a swim bladder

Shark

• It is • Bony??• Scales??• Operculum??• Respiration• Thermic regulation

Lateral line system??

FISH

GILLS

EXOTHERMIC

CARTILAGINOUS

Bony fish

• It is

• Bony??

• Scales??

• Operculum??

• Respiration

• Reproduction

• Thermic regulation

Lateral line system??

•

GILLS

OVIPAROUS

EXOTHERMIC

HUEVOS NO AMNIÓTICOS

AMPHIBIANS

• Are they independent from water?• What means their name?• What are amphibians like?

– 4 limbs– Webbed feet– Moist skin with no covering (no scales)– Undergo metamorphosis– Exothermic– Oviparous

Frog

• It is an….• It has no tail.. ANURA• Skin: • Number of legs• Metamorphosis• Respiration• Reproduction• Thermic regulation

MOIST

EXOTHERMIC

AMPHIBIAN

OVIPAROUS HUEVOS NO AMNIÓTICOS

Salamander

• It is • Skin (moist or dry?)• With tail??• Number of legs• Respiration• Reproduction• Thermic regulation• Metamorphosis

AMPHIBIAN

URODELA

OVIPAROUS

EXOTHERMIC

HUEVOS NO AMNIÓTICOS

Metamorphosis

EGGS

FROGSPAWN

LITTLETADPOLE

BIG TADPOLE with legs

FROG

They are examples of tritón jaspeado Triturus marmoratus. Who is the male and who the female?

http://riosmenudos.blogspot.com.es/search/label/Rana%20bermeja

Turtle

• It is

• Skin

• Reproduction

• Thermic

regulation

CARAPACE

OVIPAROUS

EXOTHERMIC

REPTILE

HUEVOSAMNIÓTICOS

Lizard

• It is • Skin (moist or dry?• Scaly skin?• Number of legs• Respiration• Reproduction• Thermic • regulation

REPTILE

LUNGS

OVIPAROUS

EXOTHERMIC

HUEVOSAMNIÓTICOS

• Video amazing animals

• Experimento plantas

• Exp plantas 2

Birds

• Wings

• Hollow and light bones

• Corneous beak

• Feathers

• Endothermic

• Lungs and air sacs

• Oviparous, internal fertilization.

• They incubate the eggs

Buzzard

• It is • Fur? Hair?• Number of limbs• Hollow bones?• Respiration• Reproduction• Amniotic eggs?• Thermic regulation

FEATHERS

LUNGS

OVIPAROUS

ENDOTHERMIC

HUEVOSAMNIÓTICOS

Mammals

• Skin covered by hair

• Mammary glands

• 4 limbs

• Endothermic

• Viviparous

Mammal groups

• Monotremes

• Marsupials

• Placental mammals

Platypus

Echidna

Dolphin

• It is

• Respiration

• Reproduction

• Thermic regulation

MAMMAL

LUNGS

VIVIPAROUS

ENDOTHERMIC

Bear

• It is

• Skin

• Number of legs

• Respiration

• Reproduction

• Thermic regulation

Marsupials

• Video nacimiento canguro

CLASSIFY THESE ANIMALS

• BAT• KANGAROO• DUCK• PLATYPUS• ROOSTER• TOAD• NEWT

• SEA GULL• CHAMALEON• COBRA• LIZARD• CROCODILE• SALMON• RAY• PENGUIN

IMPORTANT THINGS

• EXOTHERMIC /ENDOTHERMIC

• OVIPAROUS-VIVIPAROUS-OVOVIVIPAROUS

• HUEVOS AMNIÓTICOS

• LINEA LATERAL DE LOS PECES (LATERAL LINE SYSTEM)

What group or animal has:

• Gills

• Gills with operculum

• Gill openning without operculum

• A lateral line

• Scales

• Fins

• Cartilaginous skeleton

• Tail

• Webbed feet

• Carapace

• Poisonous teeth

• Strong jaws

• Bifidous tongue

• Feathers

• Hollow bones

• Air sacs

• Wings

• Beak

• Lays eggs

• Mammary glands

• Marsupium

COPY THIS QUESTION

• What means the word “AMPHIBIAN “(Anfibios)?

Egagropilas (Puke balls/pellets)• http://onemomswalk.blogspot.com.es/

2010/10/moo-cows-owl-puke-and-report-cards.html

¿Qué son los huevos que nos comemos?

• Óvulos de gallina no fecundados.

Identify the extrange animal• Tiburón, trucha, salmón, delfín, atún• Salmón , tiburón, trucha, sardina,

atún• Turtle, snake, lizzard, frog,

salamander.• Platypus, kangaroo, whale, penguin,

monkey.• Avestruz, murciélago, cigüeña,

paloma, gorrión.

• Find out for each picture:

–Group of vertebrates: Is it a mammal, fish, reptile, amphibian or bird?

–Main characteristics of each animal

Questions-Test link

• Why is a dog an example of a vertebrate?

• Why do fish have gills?

• Which is a characteristic of most amphibians?

• What is one way mammals are different from other vertebrates?

• What is the main difference between an amphibian and a fish?

• Vertebrates esquemas• http://www.sheppardsoftware.com/

content/animals/kidscorner/classification/kc_classification_reptiles.htm

• Games• http://scienceandfunmh.blogspot.com.es/

2013/01/vertebrates-games-and-more.html