Question

highlight three (3) constants for this experiment
pea plant clones are given different amounts of water for a three - week period. first pea plant receives 400 milliliters. second pea plant receives 200 milliliters. third pea plant receives 100 milliliters. fourth pea plant does not receive any extra water, the plant only receives natural ways of receiving water. the height of the pea plants is recorded daily.

Explanation:

To identify constants in the pea plant experiment, we analyze factors kept unchanged: 1. The type of plant (pea plant clones, ensuring genetic similarity). 2. The duration of the experiment (three - week period, same for all plants). 3. The daily recording of height (consistent measurement method). These factors are held constant to isolate the effect of water amount on plant height.

Answer:

1. Type of plant (pea plant clones)
2. Duration of experiment (three - week period)
3. Method of height recording (daily recording)