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.
Cladistics is a way of grouping the related branches based on sharing derived characters within the group. However these characters are not found in other species except by convergence. Phylogeny is a way of tracking evolutionary relationships based on shared characters based on artificially defined levels of taxonomy.
As...Environmental scientist studies the interaction of the living components of the ecosystem with the non living components.
The contamination in the soil will affect the growth of plants, this will also be studied by the environmental scientist.
The Growth of the plant depend on the quality of soil in which it is grown so it will also be a concern for the environmental scientist.