A is your answer I believe because they do indeed provide a way to review other scientists work and or experiments
<span>The correct answer is D: All of the above. Any small individual changes in the eco-system can cause larger scale changes throughout the eco system due to the interconnectivity of species within the larger system.</span>
Air passes through is: Nostrils → nasal cavity →Pharynx → Larynx →Trachea → Bronchi (with cartilaginous rings) →Bronchioles (without rings) → Alveoli (air sacs). Alveoli are the seat of exchange of O2 / CO2 between lungs and blood.
From it's environment and from traits from other parents.
The surface area is used to get substances in or out through the cell's membrane.
