How do Scientists know that the first organisms were simple, unicellular organisms?
Microbes were the first inhabitants of Earth. They are single-celled organisms -- bacteria, fungi and protozoa. Microbes are still found just about everywhere today, thriving in boiling hot thermal springs, deep below the surface of the Antarctic, 1.7 miles (2.8 kilometers) inside Earth's crust, and even high in the atmosphere.
Answered -
Related Questions
-
How do scientist know, there is no oxygen in space?
Scientists are able to measure the contents of space in many ...
-
How do scientists know that seismic waves can be either compressional or transverse?
Scientist know that seismic waves are compressional (primarry...
-
What are two things a scientist cannot know for sure from the skeleton of an animal?
Scientists can't tell whether the clock ran down a few days o...
-
How do scientists know that the solar system formed about 4.6 billion years ago?
By studying several things, mostly meteorites, and using radi...
-
How do scientists know that dogs can only see in black and white?
Popular wisdom has it that dogs are color-blind, but recent r...
Comments