Answer:
Mechanical digestion involves physically breaking down food substances into smaller particles to more efficiently undergo chemical digestion. The role of chemical digestion is to further degrade the molecular structure of the ingested compounds by digestive enzymes into a form that is absorbable into the bloodstream.
Answer:
It is a mutation to the X-chromosome.
Explanation:
Males are more effected by conditions linked the the X-chromosome. Females have an extra X-chromosome, so if the mutation happens they have a backup. Males are easier targets.<em><u> (PLEASE DON"T COPY WORD FOR WORD)</u></em>
Answer: Option C.
Explanation:
The bird's lung are said as more efficient than a human or mammals.
The bird's are having small lungs with nine air sacs playing an important role in respiration.The air sacs allows a unidirectional flow of air inside the lungs while in human the air flow takes place in bidirectional. Unidirectional flow results in the flow of fresh air along with high oxygen content in bird's lung. So, there is more oxygen available to diffuse into the blood in bird lungs.
Hence, the correct option is C.
The correct answer is B) Algae
According to Whittaker's classification system, the 5 kingdoms are Monera, Fungi, Protista, Animalia, Plantae