I would say the answer is All of the above
Answer:
The correct order of events in sound transmission is 1, 4, 2,3 5
Explanation:
1. Tympanic membrane vibrates.
4. Ossicles of the ear vibrate.
2. Internal ear fluids are set in motion.
3. Hearing receptors are stimulated.
5. Auditory cortex is stimulated.
Sound is received by external ear or pinna that travels into the ear canal and causes the eardrum or tympanic membrane to move. The tympanic membrane vibrates with sound waves. Sound vibrations move through the ear bones or ossicles to the cochlea and cochlea moves due to sound vibration. Fluid movement causes the hair cells to move. As hair cells move up and down, electrical signals is generated. The auditory nerve sends electrical signal to the brain, which turns it into a sound.
Answer:a
Explanation: because blood is pumped out of the heart and into the body to supply oxygen to working muscles or to the lungs for re-oxygenation
Answer:
The isomers are enantiomers, with 1 having toxic effects on humans
Explanation:
Many drugs marketed presently are "acemic mixtures of stereoisomers". They are either enantiomers or geometric isomers. What this means is that they are 2 isomers that are mirror images of each other but cannot be superimposed in each other (enantiomers), or they are 2 isomers that aren't mirror images. In the case of the pain reliever drug, there were two mirror isomers, however one of them had toxic effect on humans and rersulted to the fatalities recorded.
