The bronchi (singular: bronchus) are the airways that lead from the trachea into the lungs, and then branch into smaller bronchioles. Structurally, the bronchi are made up of cartilage that gives them stability and prevents their collapse.
Answer:
the correct answer is d my good man
Explanation:
A holdfast is a root-like structure that anchors aquatic sessile organisms, such as seaweed, other sessile algae, stalked crinoids, benthic cnidarians, and sponges, to the substrate.
they could possibly learn the climate the animal was from or even relative dating & absolute age
If I can remember correctly, I believe the control is what id being tested...