Which of the following statements about boiling points is true?
the boiling point is the same for all substances
the boiling point of a substance can be the same as the freezing
the boiling point of a substance is lower than its freezing point
the boiling point of a substance is higher than its freezing point

In what part of a chloroplast does glucose production occur? a. atp synthase b. photosystem ii c. photosystem d. stroma

In which of the following relationships is one organism always benefited while the other organism is always harmed

The blue particles in this image are able to cross the cell membrane through simple diffusion. how will they be transported? outside the cell inside the cell o a. the substances will move directly across the membrane from outside the cell to inside the cell. b. the substances will move through channels in the membrane proteins from outside the cell to inside the cell. o c. the substances will move through channels in the membrane proteins from inside the cell to outside the cell. o d. the substances will move directly across the membrane from inside the cell to outside the cell.