Feature of animals

The part of bird

The part of cow

*     A cows mouth is adapted for grazing, the top part of the mouth is a hard pad and the bottom part a row of flat-topped teeth. Cows have 32 teeth in all, 8 incisors on the bottom part and 6 molars on the top and bottom parts on each side.

*     The cow tears grass from the field and grinds it between the two mouth parts.

A cows ears are very flexible and can turn in any direction. They are especially used to hear any signs of danger from many directions.

*     Cows have long tails which they use to waft insects of them.

*     Diet: Cows are herbivores which means they do not eat meat, only plants, grass and cereal. Cows are ruminant animals which means they have more than one stomach.

*     Cows have a four part stomach, each part used for a different process.

The part of fish

Fins
The fins are made up of stiff rays covered by skin. Some may be jointed and some separate near the edge of the fin. In certain fish some of the rays supporting the find are bony, stiff and unjointed. 

Fin Functions   

Each fin on a fish is designed to perform a specific function. I will list them here.

• Dorsal fin. Lends stability in swimming.
• Ventral fin. Serves to provide stability in swimming.
• Caudal fin. In most fish, the Caudal or tail fin is the main propelling fin.
• Anal fin. Also lends stability in swimming.
• Pectoral fins. Locomotion and side to side movement.
• Adipose fin. Stability.

Skin

The skin of fish is divided into two layers, the Epidermis (outer) layer and the Dermis. The Epidermis is made up of Epithelial cells, arranged one above the other. These cells are constantly shed and replaced with new ones. Inter-spaced between the Epithelial cells are slime cells which produce Mucoid secretions that form the very important protective covering, we know as the slime coat. The Dermis lies under the Epidermis and many important functions happen there.