A gemstone is a piece of hard mineral that is considered exquisite in terms of physical properties and valuable because of its rarity or usefulness. In this case, the properties classify diamond as a gemstone is its <span>color and profitability. Diamonds are very expensive because of its rarity</span>
Answer:
bio -characteristic of life
B. Protista
Bcoz in kingdom protista
Euglenoids and slime moulds are present - having characteristics of both plants and animals..
And protozoans are also present-primituve relatives of animals.