Develop plants that are unable to reproduce
By producing sterile plants, the scientists may observe the effect of their presence on the ecosystem without the risk of the plants reproducing too quickly to be controlled. If the plant does not act as an invasive specie and is promoting the ecosystem in which it is placed, non-sterile varieties of the plant may be developed. However, if the plant seems to have an overbearing competitive advantage and is easily over taking the other species' resources, it should not be introduced.
Answer:
Certain species need different environments to live in and if its too cold for one species it can lead to death of the population of that species.
that is what I put
Explanation:
Answer:
only 30% of total energy will be useful ..
So, Useful energy =

13.5J energy is useful
Answer:
The Bay of Pigs invasion
Explanation:
The Bay of Pigs invasion was an attempt of Cuban exiles to destroy the government of Fidel Castro. These were actions of the USA aimed against Cuba. This invasion was one unsuccessful try and shame for the regime of Kenedy. This was an example of a group decision that was unsuccessful. Ths attempt provoked many side effects, as entering of Cuban-Americans in the Congress of America.