This document summarizes key facts about reptiles, amphibians, and fish. It states that vertebrates can be divided into five groups including mammals, birds, reptiles, amphibians and fish. It provides details on the defining characteristics of each group such as how they breathe, whether they lay eggs or give birth to live young, their skin/scales, and number of limbs. The life cycle of frogs is also summarized in five stages from egg to adult.

1. UNIT 5 REPTILES,AMPHIBIANS AND FISH SCIENCE
Natural Science 3º - Educación Primaria.
 Vertebrates can be divided into 5 groups (los vertebrados se pueden dividir en 5 grupos).
Mammals Birds Reptiles Amphibians Fish
Reptiles Amphibians Fish
Reptiles are vertebrates.
Most reptiles are
oviparous
(son ovíparos).
They can be carnivores or
omnivores (Pueden ser
carnívoros u omnívoros).
Baby reptiles look like
adult reptiles
(Los bebés parecen adultos).
Reptiles breathe using
lungs (respiran usando pulmones).
They have scales
(tienen escamas).
Most have 4 limbs and a
tail, but some have no
limbs (la mayoría tienen 4
extremidades y una cola, pero
algunos no tienen extremidades).
Amphibians are vertebrates.
They are
oviparous.
Most amphibians
are carnivores.
Baby amphibians live and
grow in the water. They
change through a
metamorphosis into adults. (Los
bebés viven y crecen en elagua. Cambian a
través de una metarmorfosis en adultos).
Baby amphibiansbreathe
using gills (branquias). Adults
breathe with their lungs.
They have moist skin (tienen la
piel húmeda).
Most amphibians have 4 limbs.
 Fish are vertebrates.
 Most fish are
oviparous. Sharks
are viviparous. (Los
tiburones son vivíparos).
 Fish can be
carnivores,
herbivores or
omnivores.
 They breatheusing
gills.
 They have scales
that protect their
bodies (tienen escamas
que protegen sus cuerpos).
 They have fins and
tail (tienen aletas y cola).
THE LIFE CYCLE OF A FROG (El ciclo de vida de una rana).
1. Eggs (huevos): An adult frog lays (pone) eggs in the water.
2. Baby: Babies hatch (los bebés salen del huevo).
3. Tadpole (renacuajo): they develop back legs (desarrollan patas traseras).
4. Froglet (pequeña rana): they develop front legs (patas delanteras).
5. Adult frog: they breathe with lungs.
Contenido mínimo para estudiar: REMEMBER
Invertebrates don’t have a backbone Los invertebrados no la tienen.
Los vertebrados tienen columna vertebral.Vertebrates have a backbone