Which synapomorphy finally allowed metazoans to leave an aqueous environment and inhabit land? A. the amniotic...
Which synapomorphy finally allowed metazoans to leave an aqueous environment and inhabit land?
A. the amniotic egg
B. lungs
C. scales with keratin
D. limbs
E. lobed fins
Homework Answers
Lungs
The first change or the synapomorphy which led the metazoans to leave aqueous environment and come into the land area is the development of the lungs. Generally the aquatic organisms have gills which enable them to breathe in oxygen and breathe out and through the gills it takes in oxygen that is dissolved in water. The lungs enable metazoans to breathe in oxygen and breathe out C02 from the atmosphere and hence this is the primary change that takes place in the organism.
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Which synapomorphy finally allowed metazoans to leave an aqueous
environment and inhabit land?
A. the amniotic...
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Please only give correct answer choice, no explanation needed
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Please only give correct answer choice, no explanation needed
please and thanks. will give a thumbs up. :)
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