14. For each condition in the table below, circle the predicted change in biomass after ten days. Explain why you predict a decrease (↓), no change (→), or increase (↑) in biomass. Condition for each Light, no water Light, water Water, no light batch of seeds (seeds didn’t (seeds (seeds sprout) sprouted) sprouted) Predicted change ↓ → ↑ ↓ → ↑ ↓ → ↑ in biomass Reason for predicting decrease, no change, or increase in biomass 15. Your teacher will show you the results of the experiment. Enter the observed results in this table. For each condition, circle the observed change in biomass after 10 days. (1.46 grams of biomass is not significantly different from the 1.5 g of total mass in each initial batch of seeds.) If any of the observed results differ from your predictions in question 14, explain the biological reasons for the observed results. Condition for Light, no water Light, water Water, no light each batch of (seeds did not sprout) (seeds sprouted to (seeds sprouted to seeds produce plants) produce plants) Observed biomass at 10 days (grams) Observed change ↓ → ↑ ↓ → ↑ ↓ → ↑ in biomass If any result did not match your prediction, explain a possible reason for the observed result. Bonus Question
14. For each condition in the table below, circle the predicted change in biomass after ten days. Explain why you predict a decrease (↓), no change (→), or increase (↑) in biomass. Condition for each batch of seeds Light, no water (seeds didn’t sprout) Light, water (seeds sprouted) Water, no light (seeds sprouted) Predicted change in biomass ↓ → ↑ ↓ → ↑ ↓ → ↑ Reason for predicting decrease, no change, or increase in biomass 15. Your teacher will show you the results of the experiment. Enter the observed results in this table. For each condition, circle the observed change in biomass after 10 days. (1.46 grams of biomass is not significantly different from the 1.5 g of total mass in each initial batch of seeds.) If any of the observed results differ from your predictions in question 14, explain the biological reasons for the observed results. Condition for each batch of seeds Light, no water (seeds did not sprout) Light, water (seeds sprouted to produce plants) Water, no light (seeds sprouted to produce plants) Observed biomass at 10 days (grams) Observed change in biomass ↓ → ↑ ↓ → ↑ ↓ → ↑ If any result did not match your prediction, explain a possible reason for the observed result. Bonus Question
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