1 invertebrate groups
TRANSCRIPT
SCIENCE-THIRD PRIMARY YEAR CEIP CORTES DE ARAGÓN
(Teacher: Miguel Navarro)
INVERTEBRATE GROUPSINVERTEBRATE GROUPS- INVERTEBRATE ANIMALS ARE THOSE ANIMALS THAT DO
NOT HAVE A BACKBONE.
- WE CAN CLASSIFY INVERTEBRATES INTO 3 GROUPS: ARTHROPODS (ARTRÓPODOS), MOLLUSCS (MOLUSCOS) AND OTHER INVERTEBRATE GROUPS.
ARTHROPODSARTHROPODS- THIS GROUP INCLUDES 4 SUBGROUPS: INSECTS,
ARACHNIDS, MYRIAPODS AND CRUSTACEANS
- THEY HAVE EXOSKELETON
1.- INSECTS1.- INSECTS
- THERE ARE NEARLY ONE MILLION KNOWN SPECIES OF INSECTS
- THEY HAVE EXOSKELETON, 2 ANTENNAE AND 6 LEGS- MOST HAVE WINGS- THEIR BODY HAS 3 SECTIONS: HEAD, THORAX AND
ABDOMEN- EXAMPLES: WASP (AVISPA), BEE (ABEJA), LADYBIRD
(MARIQUITA), MOSQUITO, ANT (HORMIGA), MANTIS, DRAGONFLY (LIBÉLULA) OR GRASSHOPPER (SALTAMONTES)
STUDY THE EXAMPLE OF THE PARTS OF INSECTS IN PAGE 86
2.- ARACHNIDS2.- ARACHNIDS
- THEY HAVE EXOSKELETON, 8 LEGS AND 8 EYES- THEIR BODY HAS 2 SECTIONS: HEAD AND ABDOMEN- EXAMPLES: SCORPION AND SPIDER
3.- MYRIAPODS3.- MYRIAPODS
- THEY HAVE EXOSKELETON, 2 ANTENNAE AND LOTS OF LEGS
- THEIR BODY HAS LOTS OF SEGMENTS- EXAMPLES: MILLIPEDE (MILPIÉS) AND CENTIPEDE
(CIEMPIÉS)
4.- CRUSTACEANS4.- CRUSTACEANS
- THEY HAVE EXOSKELETON, 2 EYES AND 4 ANTENNAE- MOST HAVE 8 LEGS AND 2 CLAWS- EXAMPLES: LOBSTER (LANGOSTA) AND CRAB
(CANGREJO)