The first known single-celled organisms appeared on Earth about 3.5 billion years ago, roughly a billion years after Earth formed. More complex forms of life took longer to evolve, with the first multicellular animals not appearing until about 600 million years ago.
The evolution of multicellular life from simpler, unicellular microbes was a pivotal moment in the history of biology on Earth and has drastically reshaped the planet’s ecology. However, one mystery about multicellular organisms is why and how the cells arranged themselves to form a multicellular organism.
यदि आपको मेरा काम पसंद है तो आप नीचे दिए गए लिंक्स के जरिये मुझे सपोर्ट कर सकते हैं।
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5 сен 2024
