Determine whether this comparison is true.Human respiratory systems take in air through the nostrils and mouth and expel it back out the same way. Sharks are the same except for them it is water moving in and out. TrueFalseI'm not sure

Whereas humans have lungs with _____(a)_____ for gas exchange, sharks have _____(b)_____ with  _____(c)_____.(a) alveoli (b) capillaries (c) lamellas(a) alveoli (b) gills (c) lamellas(a) tracheas (b) gills (c) lamellas(a) capillaries (b) lungs (c) lamellas

Question 6SavedContinuing from the previous question, compare shark lamellas and alveoli in humans.

The human circulatory system is more complex than the shark's:blood flows in two loops instead of one, andthe heart has four chambers instead of twoWe expect that the human system is better in some way because we wouldn't have evolved a complex system if a simple one would do.Explain how the human circulatory system might be better than the shark one. Propose why humans need a more complex system.

Select the statement that is true about respirationDuring inhalation, ribs move inward and diaphragm is raised In the trachea, exchange of gases take placeHaemoglobin has greater affinity for carbon dioxide than oxygenAlveolus is the functional unit of the lung

Which of the following statements is true?Tadpoles breathe through gillsThe tracheae and spiracles pass the gases to the lungs in insectsFish breathe through diffusion through moist skinThe earthworm breathes through skin and tracheae