I would say <span>The trait is carried either on the X or the Y chromosome</span>
The quicker the regulation, the less energy and material wasted to unneeded products and pathways.
Answer:
<h3>In mammals, <u>air is warmed and humidified in the nasal cavity.</u> Air then travels down the pharynx, through the trachea, and into the lungs. In the lungs, air passes through the branching bronchi, reaching the respiratory bronchioles, which house the first site of gas exchange.</h3>
<h3>Hope it helps you</h3>
<h3>Mark as Brainliest Answer</h3>
Two diverse species<span> naturally breed an offspring, and selective pressures favor </span>new<span> traits in a given environment, (they evolve). hope this helps</span>