The answer is (b.) ecosystem. An ecosystem is all living organism in an area functioning together with nonliving factors of the environment. An Ecosystem is a community of the living organism that includes the producers, the consumers, and the decomposers.
Answer:
The answer is strictly between B or D
Answer is C. The greatest biomass is always the lowest level in the trophic system: phytoplankton and bacteria.
Crossing over is important as it allows for variation in a species. Without crossing over or any other methods of providing genetic variation it would mean everyone would look the exact same.
Answer: C)Gold production was last recorded in Virginia in 1947
Explanation: Look at the graph.
