The best example, from the choices given here, of an open system is a car engine. All of the other examples are of closed systems. The correct answer is B.
Answer:thats all i have
Explanation:Your body is constantly making, altering, and destroying chemical compounds, but they're so varied and complex that it's impossible to detect and count them all.
If he's who I think he is:
A genius! :)
I might be thinking of someone else though!
Receptor specificity Physical energy such as light, sound,
and heat is detected by specialized receptor cells in the sense
organs—eyes, ears, skin, nose, and tongue. When the action potential that
relays information about the stimulus through the nervous system to the brain. Sensory
receptors take in information from the environment, creating local electrical
currents; These currents are graded.
Facilitated diffusion is the diffusion of solutes through transport proteins in the plasma membrane. Facilitated diffusion is a type of passive transport. Even though facilitated diffusion involves transport proteins, it is still passive transport because the solute is moving down the concentration gradient.
