Because those are traces of life meaning that there was life living there once, that life wouldn't have been able to survive there with how Antarctica is now.
Answer:how can chemosynthetic organisms help scientists to understand how life developed on earth? for example, temperature, a species may evolve to a temperature change over time. it could alter the food sources available, and then that species would eat that food source and adapt to the energy given off by that source.
Explanation:
The study pushes back the clock on the origin of Earth's water by hundreds of millions of years, to around 4.6 billion years ago, when all the worlds of the inner solar system were still forming. Scientists had suspected that our planet formed dry, with high-energy impacts creating a molten surface on the infant Earth.
Answer: 4.6 billion years.
Answer:
100 units
Explanation:
The mother cell contains 200 units of DNA. During cell division, this amount is split between the daughter cells produced and each daughter cell will receive half of the amount of DNA present in the parent cell.
Since mitotic cell division process gives rise to 2 daughter cells, each daughter cell will receive 100 units of DNA.
