Planet earth is approximately 4.6 Billions year old. Prokaryotic cell’s fossilized remains were found in sedimentary rocks and stromatolites which were estimated to be 3.5 to 3.8 Billions years old. Earliest prokaryotes were anaerobes....
Climate change in the world can be caused by various activities. When climate change occurs; temperatures can increase a dramatically. When temperature rises, many different changes can occur on Earth. For example, it can...
It is present in all the eukaryotic cells except RBCs and prokaryotes. It is surrounded by zone of exclusion i.e. clear region where ribosome, mitochondria and storage granules are absent. They originate from ER....
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