Identify in the food web the most energy efficient food chain for the killer whale and write it out. Write only one chain

Explain why in any given geographical region, women tend to have lighter skins( by 3-4% on average) than men?

Explain how paleontologists use trilobite fossils as index fossils for various geologic time periods.

In the united states there are strict fishing seasons and limits, but not all countries enforce similar laws. in bangladesh there are few if any fishing restrictions. what might be the reason for less restrictions in smaller countries like bangladesh? a) the united states is the only country worried about overfishing. b) the united states wants to limit the supply of fish to increase the price. c) bangladesh and smaller countries have an unlimited supply of fish in their coastal waters. d) small countries, such as bangladesh, are practicing subsistence fishing, taking only the fish needed to survive.