Possibly yellow fever can't confirm for sure
The factor that has the most greatest importance in determining the characteristics of an aquatic ecosystem will be water depth. The depth will determine the sunlight that the ecosystem will get. The answer will be B.
An ectotherm gets its heat from external sources
(Remember "ecto" means outer, "endo" means inner)
Answer:
its blurry but based on what i see the second one
Explanation: