because rigel is a blue supergiant star, is 18 times more massive than the sun and 74 times its size.
but rigel is not only the biggest. vy canis majoris is the biggest star of them all.
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my nickname - lovely
Frog skin, which is mucosal in nature, contains physical, chemical, cellular, and microbiological barriers that work together in defence against pathogen assault. Frog skin is composed of an epidermal and dermal layer, containing resident immune cells throughout the layers.
Cats use four major defense mechanisms:
Flight: Withdrawing from the threat. Fight: Defensive aggression. Freeze: Crouching and lying still to avoid attention. Appeasement: Actively submitting to the aggressor.
Similarities of Frog and Cat:
Frog is amphibians and Cat is mammals and both them can have a baby only females can have a baby