Other questions in this quiz

2. What is ventilation in mammals?

  • It's breathing in and out.
  • How the heart pumps blood around the body
  • Photosynthesis but for mammals
  • How they excrete waste

3. What are the exchange organs in mammals?

  • Alveoli
  • Heart
  • Lungs
  • Brain

4. Why do organisms need to exchange substances with their environment?

  • Cells need to take in things like oxygen and glucose for aerobic respiration and other metabolic reactions. They also need to excrete waste products from these reactions - like carbon dioxide and urea.
  • Cells need to steal from the environment to prevent global warming.
  • Cells need to excrete oxygen and glucose from metabolic reactions. They also need to take in waste products like carbon dioxide and urea.
  • To be able to take part in photosynthesis and other processes.

5. What is a counter-current system?

  • Blood flows through the gill plates in one direction and water flows over in the opposite direction.
  • Its the system where you avoid your taxes in an illegal manner but with fish.
  • Water flows through the gills in one direction and oxygen flows over the opposite direction.
  • Blood trickles out of the fish and they bleed out into the water as they try and survive. Oh no, poor little goldfish... DIE DIE DIE :)

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