Answer:
The correct answer will be- What is the effect of adding nutrients over community of plants in a particular ecosystem?
Explanation:
The scientific method is the sequential steps performed to answer the scientific questions based on the observations on the basis of experiments.
The scientific question is the question which has the real answers and can be verified and supported by the experiments and observations.
In the given question the person observed that the composition and structure of the habitat changed due to the addition of nutrients. So he framed a scientific question " What is the effect of adding nutrients over the community of plants in a particular ecosystem?
Mutation causes a defect in one of the three enzyme that processes pyruvate
Answer:
a. Exothermic.
Explanation:
We know that there are several types of chemical reactions. In some reactions, the energy which is absorbed to break down the bonds of the reactants becomes less than the energy which is released at the time of forming new bonds of the products.
This means that in the whole reaction, energy is released as either light or light. This type of reaction is called an exothermic reaction.