vertebrates vs. invertabres year 3 primary

1. UNIT 3-NATURAL SCIENCE OUTLINE
VERTEBRATES vs. INVERTEBRATES
UNIT OUTLINE
VERTEBRATES vs. INVERTEBRATES
(Backbone) (no backbone)
Mammals (horse, whale, cat, bear…) Arthropods(spiders,butterfly, crabs, worms…)
Birds (hen, eagle, pellican…) Molluscs (snail, octopus, clams…)
Fish (salmon, trout, sharks…) .
Reptiles (snake, turtle, crocodile…) .
Amphibians (frog, salamander,...) .

2. VERTEBRATES-MAMMALS
NUTRITION: Babies drink mother’s milk.
RESPIRATION:All mammals breathe through their LUNGS.
REPRODUCTION: Almost all mammals are
VIVIPAROUS. Mammals give birth.

3. VERTEBRATES-MAMMALS
MAMMALS PHYSICAL CHARACTERISTICS:
Most mammals live on LAND, and have 4 legs.
S Some mammals live in WATER, and use flippers to
move.
b
Most mammals have fur or hair to keep them warm.