Answer: I think the first answer would be the best option
Explanation:
A mutation is a permanent change in the order or bases in DNA
The sound waves travel from the outer earand in through the auditory canal, causing the eardrum, or tympanic membrane, to vibrate. This, in turn, causes the three small bones, known as the ossicles, or the hammer, the anvil and the stirrup, in the middle ear to move.
Hope this help you.
Answer:
All four forces are acting in the same direction
Explanation:
D the substance get downeards