Which part of the spermatozoa contains the most mitochondria? a. tail b. midpiece c. head d. acrosome?

The answer would be: b. midpiece

Mitochondrial is an organelle that has a role in energy production. Part of the spermatozoa that need most energy would be its tail that has to constantly move. The movement of the tail mostly done in the midpiece where the mitochondrial present.
The head and acrosome should not have any, that is why the fertilized egg doesn't have mitochondrial from the sperm.

Wetlands form where water and land meet. a lake with a wetland fringe can fill in with decayed plant and animal material to become a wet meadow. a pond can fill in to become a bog or fen. sediment can fill in a river marsh to become a swamp.flooding of coastal lowlands from rising sea levels has created broad coastal marshes that are protected from wave action by barrier islands or reefs. coastal wetlands also form when rivers deposit sediment as they reach the ocean. plants then take root and hold the soil firm against the forces of tides and waves.