Chloroplast
Mitochondria and plastids (like chloroplasts) are known as cells within a cell because they are believed to have been prokaryotic cells before entering eukaryotic cells.
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The explosions of supernovas
It isn't. Since the times of ancient Greece comets have been believed to be omens of catastrophes. There is no evidence to substantiate such claims. Comets can cause destruction when they collide with Earth. Halley's comet's orbit does not intersect Earth's, so there is no risk of collision.
scorpius
All the ancient gods were believed to have been born with their respective powers and responsibilities.
The Phoenicians are believed to have been the ancient people who brought the cat to Europe. It is not clear when exactly this happened.
Checkers is believed to have originated in ancient Egypt. The game has been played for centuries and has evolved in different regions under various names, such as draughts in the United Kingdom.
Hawaii, The ancient Polynesians are believed to have been the ancestors to the native hawaiians.
Our Moon's maria are currently believed to have been formed by ancient volcanic eruptions.
Mitochondria and plastids (like chloroplasts) are known as cells within a cell because they are believed to have been prokaryotic cells before entering eukaryotic cells.
An ancient astronaut is a theoretical extraterrestrial being who it is believed by some may have been associated with paleocontact - the idea that aliens visited the planet Earth in ancient times and influenced human culture, technology or religion.
Many ancient civilizations believed so. Today, that theory has been proven wrong.
Aesop is traditionally believed to have been a male storyteller and fabulist who lived in ancient Greece.
no fact still found yet have been approved who build the ship.. but they believed ANcient Egyptian build the ship...
A hin is a unit of liquid measure used by the ancient Hebrews, equal to about five liters.
Ancient Egyptians believed God Kings to be incarnations of their god, Horus. One Pharaoh believed to be such an incarnation was Narmer, also known as Menes, who ruled in the first century. He is believed to have been the first God King.