Scientists have genetically modified a variety of corn to protect it against 6 points
its predator, the corn borer. This variety of corn now produces a chemical
that is toxic to the corn borer. How will the genetic modification benefit
the entire ecosystem? *
The corn plant will be able to survive and produce more food for the ecosystem.
The chemical produced by the corn plant will be consumed by others in the
ecosystem.
The modified gene will mutate, and the new chemical produced will not be toxic to the
corn borer.
The corn plant will self-fertilize and cross-pollinate and continue to produce pest
resistant corn plants.

Considering a trophic web and competition for resources, we could say that the genetic modification benefit s the entire ecosystem because the corn plant will be able to survive and produce more food for the ecosystem.

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Assuming competition for resources between different species, and considering the trophic web, we could conclude that the genetic modification benefit s the entire ecosystem is because the corn plant will be able to survive and produce more food for the ecosystem →→→ Option A.

We need to think about the whole ecosystem when answering this question.

Let us think about the trophic web.

The trophic web is a relationship process between different organisms, through which occurs transference of energy.

These organisms place at different levels. The ones placed at lower levels pass energy to the ones at the higher levels. Each level feeds on the anterior one and gets eaten by the next one.

As it is a web, all organisms are equilibrated until a change occurs.

When the change affects any of the involved links, there can be a cascade effect on the web.

A change in a link population size (increasing or decreasing) will affect the superior links and the immediately anterior link.

Also, when two or more species are competing for the same source of food, a change in any of the population sizes will affect the other ones.

In the exposed example, we will assume the corn borer was a successfull competitor and was preying on the corn. When eliminating it by the action of the toxic chemical, other organisms will experience a repercussion.

As the corn borer dies, the corn plant grows better and faster.

It might develop more foliage, flowers, and fruits, which might be acting as sources of food and shelter for different species.

Many other species might benefit from this genetic modification.

The corn plant development provides food, shelter and protection for many other species.
The corn borer death means less competitive pressure for many other species.

The other options.

B) The chemical produced by the corn plant will be consumed by others in the ecosystem. ⇒ Depending on the chemical, it cause no effect on other species, or might affect them. In any case, it is not beneficial for ecosystem.

C) The modified gene will mutate, and the new chemical produced will not be toxic to the corn borer ⇒ If this was the case, the corn plant would still be affected and the predator would still preying on the plant.

D) The corn plant will self-fertilize and cross-pollinate and continue to produce pest resistant corn plants ⇒ This would not involve other species.

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