ECOLOGY
ORGANISMS AND THE ENVIRONMENT
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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green plants decrease, carnivores decrease
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green plants decrease, carnivores increase
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green plants increase, carnivores decrease
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green plants increase, carnivores increase
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Detailed explanation-1: -If the herbivores and carnivores were removed, there would be changes to the biodiversity of the producers, but they would still survive. The food chain would be limited to these producers and decomposers, which break down dead organisms. The food chain would be intact, but would be mainly made of producers.
Detailed explanation-2: -If all the carnivores are removed from the earth, the population of herbivores, will increase. Large population of herbivores will overgraze. As a result, all plants will disappear from the earth surface and ultimately the earth may become a desert.
Detailed explanation-3: -The animals would eat all of the available vegetation, and then die of starvation. Without enough carnivores and omnivores to keep their numbers in check, that is the inevitable outcome. Carnivores and apex predators would have nothing to eat and many would die too.
Detailed explanation-4: -For example, if the number of carnivores decreases then the herbivores population will increase as they will not be eaten by the carnivores. This will lead to excessive grazing of the plants by the herbivores as a result, the no of plants will decrease and the amount of oxygen will also decrease in the atmosphere.