Producers, like this plant, take in oxygen and release carbon dioxide during , just like animals and other living things.

Producers, like this plant, take in oxygen and release carbon dioxide during respiration, just like animals and other living things.

Autotrophs obtain energy by the process of photosynthesis. Any living organism need energy to survive and autotrophs are no different. 
Producers uses the sunlight, water and CO2 to produce glucose and process it into energy. 

Because the earth is not round ,but it may seem round when viewed from ,our planet but true some points earth is not round was an oblate spheroid -a square that it squashed as globe however is not even a perfect oblate spheroid.in fact isaac newton's first proposed that earth was not perfectly round but it was an oblate spheroid instead.that mean a square that is squashed as its poles and swollen at the

It is evolution, because we all have some of the same traits like eye color or shape or ears.