Which organelle packages materials and distributes them throughout the cell

Which of the following statements about protists are true? a.they are typically found in moist environments. b.they are all unicellular. c.they have a nucleus. d.they are all multicellular.

What substance is the most acidic. lemon juice. tomato juice. sodium hydroxide. water

This is the main structural axis of the plant that supports leaves, flowers and fruits; transports fluids; stores nutrients and produces new tissue.