Given a scientific passage and an answer, generate a question for the given answer.

Passage: Immune system organs include bone marrow, the thymus gland, the spleen, and the tonsils. Each organ has a different job in the immune system. Answer: immune system
Bone marrow, the thymus gland, the spleen, and the tonsils are organs in what body system?

Passage: Photosynthetic organisms include plants, algae, and some bacteria. Answer: photosynthetic
Plants, algae and bacteria are all examples of what type of organism?

Passage: Increasing the temperature increases the average kinetic energy of the N2molecules. Answer: kinetic energy
Increasing the temperature of n2 molecules increases what energy of motion?