Answer:
C. The weight loss of the mice
Explanation:
There are two variables present in the experiment;
- The time of the day that the mice rane
- The weight lost of the mice in each time test
The time of the day varies from morning, noon to evening. This variable is independent of any other aspect.
It shall always be morning noon and evening in every single day.
The time of the day shall determine the amount of weight loss.
Each time shall vary in the amount of weight loss.
Thereby weight loss becomes our dependent variable.
Why is it important to avoid applying too much nitrogen fertilizer?
B. Too much nitrogen can increase the salinity of soil.
No. Biotechnology is a refinement of breeding techniques that have been used to improve plants for thousands of years. The 20th century, in particular, saw the development and application of many new techniques to transfer genes between related and even unrelated species for crop improvement. Biotechnology is the latest in a long line of increasingly powerful tools for enhancing crops.
