What would happen if the producer population were wiped out completely?

a first level consumers would obtain energy from second level consumers.

b there would be no energy available for consumers.

c first level consumers would increase in number

d there would be more energy available for consumers.

B. There would be no energy available for consumers

Explanation:

The producers are the basis and foundation of all ecosystems. If something dramatic happens to the populations of producers and they are wiped out, then the ecosystems will crumble and nothing will be left of them. The reason for this is that the producers are the ones that produce the energy, and they are the ones that are the food source, thus energy source for the consumers. Once they are gone, the organisms that consumed the producers will starve to death. The predators will have lot of food from the dying prey, but that will only last for a couple of weeks, and after that they will starve to death as there will be no more food left for them.

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explanation:

the temperature in kelvin of 2.0 dm3 of an ideal gas is doubled and its pressure is increased by a factor of four. what is the final volume of the gas