B) Give any four characteristics of Class mammalia
Answers
Answer:
please mark as brain list
Explanation: Characteristics features of mammals:
(1) Body is covered with hair.
(2) Skin is provided with sweat and sebaceous glands.
(3) Heart is four chambered.
(4) Fertilization is internal.
(5) Females have mammary glands to produce milk to nourish their young ones.
(6) External ear-pinna present.
(7) Eyes have eye lids.
(8) Warm-blooded.
(9) Respiration through lungs.
(10) Body cavity dividedinto thorax and abdomen by muscular diaphragm.
Answer:
the answer is given in explanation part
Explanation:
General characteristics of class mammalia:
These animals are warm blooded, hairy and have mammary or milk producing glands, (mammary glands). They are the only animals which nourish their young ones with milk.
They are homo iothermous (warm blooded).
Oil glands (sebaceous glands) and sweat glands (sudoriferous glands) are present in the skin.
Teeth are of different types (heterodont) and are embedded in the sockets of jaws (the codont).
The heart is four chambered.