The tundra has little variation in temperatures
Answer:
less than 1%
Explanation:
The approximate percentage of the geologic time that humans have existed on the Earth since its origin is less than 1%.
The earth is about 4.6 billion years and much of its history has been without the present of human activities.
- Hominis were the first human to appear on the surface of the earth.
- This was in the Miocene epoch which was about 6 million years ago.
- Compared to the age of the earth, this time lapse is very small and not up to 1%.
- Life first appeared on earth about 3.5billion years.
- Since then evolution has taken its due course to give what we have today.
Multicellular organisms can be much larger and more complex. This is because the cells of the organism have specialised into many different types of cells such as nerve cells, blood cells, muscle cells all performing different functions.
That is because being prokaryotic or eukaryotic doesn't depend on the size of the organism, but rather on the cellular structure. Both are eukaryotic because they have clearly defined nuclei and functioning organelles that are differentiated, unlike prokaryotic organisms.
Carl Linnaeus was the father of modern taxonomy. He came up with the idea of a universal system of binomial nomenclature (which is made up of the genus and species, respectively).
Hope that helps!
