Answer:
The two types of quantities scientists consider when examining is Scalars and Vectors
29. B
30. EXO means your EXporting it out of the cell so the answer would be C
I still wish I could help but I'm in 6th grade
Sound waves make u heat it and ur brain interprets it
Since living organisms require energy and both survival and reproduction... the sun provides the energy for photosynthesis. Cells need sugar as a sources of energy. The cellular respiration is the synthesis of ATP using energy that is being released by the breakdown of sugar to carbon dioxide and water.