Suppose a city (call it Green City) decides to increase the number of electric vehicles being driven. How does Green City's decision to increase the number of electric vehicles fulfill each sphere of sustainability?

The leopard frog and the pickerel frog are two closely related species. in areas where their ranges overlap, the frogs will remain separate species if they

The hematodinium parasite becomes less of a problem for the blue crab when the crab is very young. fishing is thriving in the region. the crab moves to less salty water. a significant percentage of the population is impacted.

Which level of taxonomy has the fewest organisms?