because a preditor started killing off the offspring
According to the Big Bang Theory, the universe began when an explosion had occurred 15 billlion years ago. It consist of an explosion of space within itself. Unlike an explosion of bomb where fragments are thrown upward in the theory it was an exact opposite. Atoms formed when the matter and anti-matter were formed together after it has cooled down.
Is it a question or ... no ?
<span>The correct answer is C) photosynthesis and respiration. It powers almost all trophic chains and food webs on the Earth is called Photosynthesis. The process which organisms oxidize organic molecules and derive energy known as ATP from the molecular bonds that are broken is called respiration.</span>
