No they cant be mechanical because then something would have to generate their rays through the inventing of a machine.
A genetic mutation. It's known as malformation. It can be caused by a trisomy in one of the alleles, or an affected gene.
A tissue that appears to have long fibers that appear striated, with the nuclei are pushed off to the side of the fibers is a Skeletal muscle.
The cells of a Skeletal muscle are large,long and <span>cylindrical</span>
<span>and appear striated (banded)
They are also attached to bones</span>
Take a dna test... he will be more confident about it then
Answer:
When entering, oxygen is high and carbon dioxide is being produced, when exiting carbon dioxide is being exhaled into the air
Explanation: