Ventilation is the process which the air moves in and out of the lungs. Diffusion is the movement of gases without the use of energy and or effort by the body. Hope this helps!:)
The first one and the fourth one
If the DNA strand is mutated it can cause genetical and physical defects.
<span>Just as an extra chromosome can cause Trisomy 21 which cause Down Syndrome.</span>
A natural process resulting in the evolution of organisms Best adapter to the environment
Answer: buccinator
Explanation:
The buccinator is a muscle that looks quadrilateral in shape. It is present between the internal of mandible and maxilla. It basically forms the anterior portion of the cheek and also forms the part of the oral cavity. The buccinator muscles compresses the cheeks against the teeth. These muscles are used to perform the acts like blowing. The buccinator muscles are the assistant muscles which helps in the process of mastication or chewing and in case of neonates it is used to suckle.
