Energy is an ecosystem flows only one way.
Energy flows through an ecosystem in only one direction as it is passed from organisms at one trophic level or energy level to organisms in the next trophic level.
It is not entirely clean. It is a carbon neutral, the combination of animal and human waste increases the amount of methane gas dramatically.
Answer:
A hypothesis becomes a theory with proper evidence.
Explanation:
A hypothesis is untested and subjective while a theory is tested and objective. A hypothesis will become a theory when it is tested and proven with facts and evidence that support the hypothesis.
Diffusion is the movement of particles across a semi-permeable membrane from a lower concentration to a higher concentration
Molecular Biology-
Comparative Anatomy- 5
Phylogeny- 2
Homologous Structures- 1
Vestigial Structures- 3
Analogous Structures- 4