D) They are the snallest particles of any material.
Correct answers are
1) Ecosystem 1 has more abundant and consistent resources.
2) The rate of decrease in the number of species in ecosystem two reflects a disruption of the food web.
3) Ecosystem one has a broad range of trophic levels providing more stability.
4) Ecosystem two has fewer ecological niches which limits the ability of species to adapt to change.
Meiosis.
Meisois is is the reproduction of the sex cells (sperm and egg), while mitosis is between a regular cell. Another difference is that Meiosis splits into 4 cells, while mitosis splits into 2.
Hope this helps!