I think the correct answer from the choices listed above is option D. <span>The recognized standard means of inquiry used by research scientists is the experimental method. This is the most known method used by almost all researches worldwide. Hope this answers the question. Have a nice day.</span>
Answer:
The carbon dioxide is one of the green house gases and mainly responsible for the increase of the earth's temperature. The plants uses the carbon dioxide for the photosynthesis process.
The plants that are exposed to the normal carbon dioxide can be used as a control in this experiment. Then the scientists will notice that if the amount of carbon dioxide is increased, does it show any positive or negative effects in the experiment.
Yes, it is possible.
However, this is only possible if BOTH of the parents have a recessive allele for blue eyes, i.e. they're heterozygous.
Let only one gene is controllable of the eye color. Let the brown eye dominant allele be R and blue recessive be r. So, only if both parents have the genotypes of Rr, they can produce a baby with rr due to random selections at meiosis, and the baby phenotype would be blue eyed.
If they're both RR or at least one is, the chance of having a blue-eyed baby is impossible.