When you exhale into a cold window pane, water vapor in your breath condenses on the glass. where does the water vapor come from?

People who exercise for an hour may have lower cholesterol levels. is that a statement? a law? or a hypothesis?

Which organism is the producer in this food web? 7th grade question. a) arthropods b) birds c) fungi d) plants

Which organelles are labeled d, and what is one feature that distinguishes them from the other labeled organelles chloroplasts the only organelles that produce sugars from sunlight mosomes, only found in animal and bacterial cells centricles only found in animal cells mitochondra, the only energo-generating structures found in cells