birds (1)

GENERAL CHARACTERISTICS:

They have a highly developed brain.

They have a well-developed internal skeleton of cartilage and bone. So, vertebrates can develop bigger bodies than invertebrates.

GENERAL CHARACTERISTIS:

They have an advanced nervous system, more complex than that of invertebrates.

they have well-developed sensory organs

they can react very quickly to changes in their surroundings

these animals can learn from their mistakes

GENERAL CHARACTERISTIS:

The highly developed nervous system and internal skeletons of vertebrates make them

adaptable to land, sea, and air. So they live in a variety of habitats.

Most vertebrates can move and are heterotrophic.

GENERAL CHARACTERISTIS:

They have a respiratory system with either gills or lungs.

They have an outer covering of protective cellular skin.

GENERAL CHARACTERISTIS:

They have a bilateral symmetry plan.

Human beings are vertebrates, because they have a internal skeleton.

Birds´bodies

Their food

Their temperature

Their reproduction

Their bodies

Birds´ feet and legs are covered by thick

scales.

Birds are covered of feathers and they

have wings to fly.

They have also a horny beak.

Their food

They must eat a high diet to get energy

for flying.

They have light weight bodies and

strong muscles that help birds to fly.

Their temperature

Birds can use heat from activity in their

cell to mantain the temperature.

They have warm blood

Their reproduction

Birds are oviparous their eggs have an

amniotic sac like reptiles and a shell.

When bird chicks hatch they follow their

parents, they depend on a mother for

warmth and protection but they can walk

swim and feed themselves.

They keep their eggs warm in a nest by

brooding.

penguins chickens vulture

eaglestork

robin parrot

Comic life