Skeletal System Provides shape and strength to the body Protects internal organs 206 bones in an adult human body Major bones: Skull, Ribcage, Backbone, Limbs…
Read moreEarly Humans Hominids: Earliest human-like beings, ape-like, appeared 4.5 million years ago in Africa. Homo habilis: First humans, used limbs for walking, ha…
Read moreShort notes on the circulatory system Circulatory system: transports nutrients, water, oxygen & removes waste gases via blood. Organs of the circulatory…
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