Question 5 Hypothesis: If pea plants are grown in buckets, then they will produce more peas pods than those grown in the ground. Group A: Plants in the ground Group B: Plants in buckets What is the independent variable? The number of pea pods produced. O The amount of sunlight. The amount of water. The place grown (buckets vs. ground).

Subject: Environmental Physiology Please answer both parts of the question

A scientist is studying the effect a new fertilizer has on the root growth of bean seedlings. Three groups of plants are grown in the same location in a greenhouse, each receiving the same amount of sunlight and water every day. The scientist measures the length of the roots for each plant every day. The scientist then calculates the mean for each group for five days. The results are shown in the following table. Fertilizer Experiment Data Table A What is the independent variable in this experiment? B с Day 1 Day 2 Day 3 Day 4 Day 5 D Group 1 0 mg 3.0 cm 3.2 cm 3.4 cm 3.7 cm 4.2 cm the amount of water given to each plant the amount of fertilizer given to each plant Group 2 5 mg 2.7 cm 3.1 cm 3.7 cm 4.2 cm 4.6 cm the place in the greenhouse where each plant was placed the type of soil used for each plant Group 3 10 mg 2.9 cm 3.3 cm 3.7 cm 3.9 cm 4.1 cm

The important data to be recorded in this experiment will come from the observations of the increase in