An example of an internal response to stimuli is "<span>A. The body interprets a feeling of constant thirst." For a response of this nature to be internal, it must occur within the body.
</span>
Answer:
Type II alveolar cells.
Explanation:
Type II alveolar cells produce and secrete pulmonary surfactant, a liquid with phospholipids that reduces the surface tension avoiding the collapsing of the alveoli walls and making possible the entrance off air to the alveolar sac in order to exchange O₂ for CO₂.
Answer:
A
Explanation:
Dna is built with a phosphorous backbone
<span>DNA Polymerase proof reads and corrects the bases that are added.
</span>
