Group of phylum Chordata
State the group of phylum Chordata which first colonized the terrestrial environment? Which habitat from did they come?
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Amphibians, are partially aquatic and partially terrestrial animals, they were the first chordates which has colonized the dry land. They arise from the aquatic habitat and were originated from the fishes. Reptiles were the former completely terrestrial chordates.
Write the gas exchange unit of mammalian lungs? Answer: The gas exchange units of mammalian lungs are the alveoli.
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Giving reasons categorize the following into intermediate and final products (i) Furniture bought by a school.(ii) Chalk, duster, and so on bought by a school.
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Why is the fish circulation categorized as a complete and simple circulation?
Classify animals as per the germ layers that are present in their embryonic development?
How visual deficiencies termed as myopia and hypermetropia can be optically described?
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