General Science Questions

 Protein cantaining foods are the major source of dietary sulfur. Foods like eggs are rich in sulfur content.

Here all the options given are important functions of Earth's atmosphere.

An orthodontist is the type of doctor that specializes in teeth and jaw alignment. When the teeth don't align properly, it can cause uneven wear in the teeth.

The jaw is a hinge joint. Strong muscles in the face open and close the jaw. Teeth are implanted in the jaw and serve to rip, tear and crush food in preparation for swallowing it.

Plant cell walls are mostly made up of the molecule cellulose. Cellulose is a polysaccharide, a complex sugar made of long chains of glucose.

The cell wall must be made of thick and strong material as it provides the structural shape of the plant and protection from insects and microorganisms.

Water reabsorption by the renal tubules is harmonally controlled and it is a osmosis mechanism.