Oxygen is needed to produce energy in eukaryotic cells. which organelle would you think needs oxygen the most

Astudent observes a star from two positions of earth in its orbit, in summer and winter, and measures the change in the position of the star. which of these can be best calculated by this method?

Does the sun release radiant energy?

With the word calcite wich completes the analogy mineral, erosion, marble, or aragonite