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Q. How do chordates reproduce?
Reproduction in beings of the phylum Chordata is sexual, with the exception of urochordates that can be also reproduce asexually. In some classes (cyclostomes, amphibians and osteichthyes fishes) there is larval stage. With rare exceptions, amphibians, fishes, monotreme and reptiles mammals are oviparous, egg-laying (embryos develop outside the mother's body and within eggs) and marsupial and placental mammals are viviparous (embryos develop inside the mother's body, feeding from her).
In that Unit you also learnt about Darwin, who based on his extensive observations and interpretations showed that evolution is a simple fact of nature. It was Theodosius Dobzhansk
what are disadvantage of protozoa
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