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Step2247 [10]
3 years ago
13

Scientists observed that the populations of top-level consumers in a particular ecosystem were rapidly decreasing. Further studi

es revealed that there was also a decline in producer productivity. Which other changes did the scientists most likely observe in the ecosystem?
increased producer diversity


decreased population size at all levels


decreased primary consumer populations only


increased primary and secondary consumer diversity
Biology
1 answer:
yanalaym [24]3 years ago
5 0

Answer:

The correct answer is - decreased population size at all levels.

Explanation:

A decrease in the productivity of producers of an ecosystem will lead to a decrease in all other organisms of the ecosystem including top-level consumers to the bottom-level producers due to the fact that producers provide energy and food to primary consumers.

It is because they are the only organisms that convert the sunlight to usable energy and food that transfer from one trophic level to other, so if the population of producers or their productivity will decrease then there will be decreased population size at all levels.

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Answer:

At meiosis II in the mother

Explanation:

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 El modelo de Bohr se centró en el núcleo del átomo rodeado de electrones que giran a su alrededor. J. J. Thompson propuso electrones rodeados por alguna carga positiva para equilibrar el poder de los electrones que estaban cargados negativamente. El modelo de Ernest Rutherford propuso que los protones y los neutrones residían dentro del núcleo del átomo con los electrones distribuidos alrededor del núcleo. A James Chadwick se le atribuyó el descubrimiento de neutrones (que poseen carga neutral) en su modelo, contribuyendo así al modelo atómico. Ernest Schrodinger avanzó el modelo de Bohr al indicar claramente los orbitales a través de los cuales los electrones giran alrededor del núcleo de un átomo.

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