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Please answer ALL parts of the question fully with detailed explanations. #Q5 a)Looking at the rat’s heart, how...

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Biology

Please answer ALL parts of the question fully with detailedexplanations.

#Q5

a)Looking at the rat’s heart, how does the mammalianheart differs from those of reptiles? And from those of fishes? Howsimilar is it to a bird’s heart?

b)What advantage has the mammalian heart over thereptilian heart? Use diagrams if necessary.

c) Compare & contrast both the skeletal systems anddigestive systems individually in pigs, cats, and sheep.

d) pig vs cat :

  1. What is the length of the small intestine relative to the body?Why?
  2. What is the length of the large intestine relative to the body?Why?
  3. Is the spinal column bent or straight? Why?
  4. Are the legs straight or highly bent? And what is the length ofthe leg bones in each animal? Why? How do you think this relates tolocomotion in each animal, or what type of locomotion ispossible?
  5. Is the body elongate or tall?

Answer & Explanation Solved by verified expert
4.1 Ratings (727 Votes)
A rats heart is also the 4 chambers like mammalians heart two artrium and two ventricles the circulatory system of rats is also similar to mammalians heart mammalians heart consist of 4 chamber and reptile heart has 3 chambers 2 ventricles and 1 atrium in mammals 2 different channel for oxygenated and deoxygenated blood so its is warmblooded and maintain homostatis in our bodu while the reptile is coldblooded so their body temperature depend on external condition so the mammals can servive in harsh condition fish heart is 2 chambers heart 1 atrium and 1 ventricle so in it and in it the blood is filtered by the gills and in it the single circulation of blood occursunlike mammals have double circulation mammalian and bird both have the 4 chambers heart 2 atrium and 2 ventricles so their is no mixing of blood occurs and both are warmblooded    See Answer
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