Answer:
pure research or fundamental research which is a type of reach with the idea of improving scientific theories. :)
The related member of phylum is (a) arthropoda.
Answer:
Option C.
our solar system, the Milky Way Galaxy, the universe
Explanation:
The Solar system comprises of the star and all its planets, comets, asteroids and also other bodies. It is very larger than a star.
The milky way galaxy comprises of group of solar systems that orbit around a central core . The galaxy normally have very big hole in their centre.
The Universe contain billions of galaxies and it comprises of everything, asteriod, moon, planet, star, solar system,galaxy.....
It’s the 3rd one okkkkkkkkkk
Answer:
False
Explanation:
Scientist believe that the primitive atmosphere lacked free oxygen. Oxygen is a highly reactive molecule that would have made difficult for complex macromolecules to appear and then create life. Rocks from the precambrian period support this theory.
Anaerobic cells appeared first, then photosynthesis appeared filling the atmosphere with oxygen and the aerobic organism develop cellular respiration to obtain energy, a process more efficient than anaerobic respiration.