The correct answer is d. 3.5 billion years.
Prokaryotes were the first forms of life on Earth long before simple multicellular life appeared because of their ability to withstand extreme conditions. It is believed that the first living forms were bacteria combined with archaea in the microbial mat (multi-layered sheet).
1. It requires two parents.
<span>2. It takes time and energy.
</span><span>3. It can prevent favourable genes from being passed to offspring.
</span><span>4. It produces fewer offspring than asexual reproduction.
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You didn't give options so I couldn't properly answer your question.
However, hope this helps xox :)
A. Osmosis is the answer for this question
Answer:
The flow of heat from Earth's interior to the surface is estimated at 47±2 terawatts (TW) and comes from two main sources in roughly equal amounts: the radiogenic heat produced by the radioactive decay of isotopes in the mantle and crust, and the primordial heat left over from the formation of Earth.
