Note Taking

In reading we are learning to take notes. When you take notes you have to right key worrd not full sentances. Here is my notes that I took.

Shells:

Shells protect predators, strong currents,storms. Hermit crabs change shell every time, grow bigger.

Scales:

Fish covered scales, layer of slime to help move water. reptile full scales.

What makes a reptile a reptile?

covered, scales, cold blooded.

Scales protect  bodies. How?

The scales protect their soft bodies

Scales hard or soft, large, small.

Crocodile bumpy scales

Larger Scales can make a fish tougher and harder to digest

The inner layer of the scale is made of lamellar bone. On top of this lies a layer of spongy or vascular bone and then a layer of dentine-like material called cosmine. The upper surface is keratin. The coelacanth has modified cosmoid scales that lack cosmine and are thinner than true cosmoid scales.

Feathers:

bird a bird?

Wings no a bat and a fly has wings not birds

A: feathers.

Feathers help keep warm

light but tough covering.

Help flying

largest tail, wings

Fur:

fur warm when cold.

Most warm-blooded animals, skin not enough  2 keep warm.

Most mammals fur.

Skin:

African Elephant’s skin thick around ear it is thin 2 cool down. thick everywhere else places extra support

Armor:

Mammals= Armadillo, porcupine, hedgehog

hedgehog adult 5000 spikes

Reptiles= Turtle, Tortoise,

Arthropods = Crabs

Armadillo has armor, boney plates, upper body, feet : leather protect them from predators : foxes cats.

Pufferfish, deadly poison, defence.