Answer:
Moist walls - gases dissolve in the moisture helping them to pass across the gas exchange surface. Permeable walls - allow gases to pass through. Extensive blood supply - ensuring oxygen rich blood is taken away from the lungs and carbon dioxide rich blood is taken to the lungs.
The organs are known as Vestigial organs. The evolution from land-dwelling animal to the marine animals has led whales as well as dolphins, to lose hind limbs. The pelvic and leg bone serves no purpose in them and just provide the anchorage to muscles
Are any of the answers capitalized? I believe it's Bb.
Answer:
social anxiety disorder
Explanation:
social anxiety disorder is the fear of being judged by people or negatively assessing them, or rejected in a social situation
Answer:
Diffraction occurs just with electromagnetic waves.
Explanation:
