Answer: Depending on the nature of the signaling molecule, it may either bind to and activate a receptor protein embedded in the plasma membrane, or it may move across the plasma membrane and bind to a receptor protein in the cytoplasm.
Explanation: I found this answer on quizlet
Radiation. radiation is what causes heat, therefore the air would heat from the natural radiation.
Answer:
Radial Loop – This pattern is similar to the ulnar loop, but the difference is the turns point toward the thumb instead of the small finger.