The outer ear consists of the pinna, the part you can easily see and feel, and the ear canal. The pinna helps to gather the sound waves<span> around us. These </span>sound waves<span>travel down the ear canal where they strike the ear drum. The ear drum separates the outer and middle ear.</span>
They're opposites. On a wave the highest point is the crest, while the lowest is the trough
Answer is D. because they move relative to each other
Answer:
Each cell can receive and respond to signals that they get from their surroundings. The three stages involved in transduction are reception, transduction, and response.
Reception: It involves receptor molecules and inducers. Receptors can be intracellular or extracellular. Receptors like G- protein-coupled receptor, receptor tyrosine kinase, and signaling molecules are the items that come under reception.
Transduction: In transduction, signals are transferred from outside of the cell to the inside of the cell. Secondary messengers are majorly involved in signal transduction like cAMP, cGMP, IP3, Ca2+, nitric oxide, etc.
Response: The response of cell signaling includes processes like protein synthesis, cell division, cell growth, etc.
