Muscles and human skeleton are very much connected with each other.
<h3><u>Explanation:</u></h3>
Muscles form one of the 5 systems of our body. They consists of both the skeletal muscles as well as the smooth muscles of our body. While the smooth muscles are the part of the organs, the skeletal muscles are attached with bones either directly attached, or they are attached with the bones by means of tendons. These muscles are formed of cells called sarcomeres and they are the structures which make the bones move. Bones ars like the rods and muscles are like hydraulics. So they are collectively called as musculoskeletal system.
Skeletal system is referred to as the collection of each and every bones of our body which is roughly 206 bones, and their organization in body helping us to stand and move.
Idk for sure but it might be pollution because we pollute chemicals into the air
A covalent bond is also called a molecular bond. it’s the chemical bond that involved the sharing of electron pairs between the atoms.
A heterotroph is an organism that cannot produce its own food. It has to eat/ consume other organisms to sustain its self. An omnivore is an animal that eats both plants and animals. It is a heterotroph because it must eat to live. Same with a carnivore, just that it only eats meat.