The graph shows data from ice cores. What has happened to carbon dioxide levels over time? A. They have increased dramatically recently.

B. They have remained flat and steady.

C. They have decreased dramatically recently.

D. They have gone up and down with no general trend.

Which organelle breaks down sugar molecules that supply energy to the cell ?

Hemoglobin is a proton that carries oxygen around your body what is hemoglobin made from

What is the best conclusion based on this data? the hypothesis was not supported because the data indicated that fertilizing plants does not improve plant growth. the hypothesis was supported; to get the best growth, use 5 milliliters of fertilizer per plant. the hypothesis was not supported; the data indicated that too much fertilizer can inhibit plant growth. the hypothesis was supported; to get the best growth, use 15 milliliters of fertilizer per plant.