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NEET UG BIOLOGY MCQ: ANIMAL KINGDOM
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Animals which are triploblastic with tube within tube type of body plan and embryonic blastopare forms anus (deuterostomia) are
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Correct option: D
Echinoderms
Option D (Echinoderms) is correct because Echinoderms are triploblastic, deuterostomes (blastopore forms anus), and have a tube-within-a-tube body plan.
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a) In Vertebrata the notochord is replaced by a cartilaginous or bony vertebral column in the adult.
b) A post anal tail is present in all adult urochordates.
c) In Cephalochordata, notochord is present only in larval tail.
d) Vertebrates have a ventral muscular heart with two, three or four chambers. Read the following organisms given in the below
Tapeworm, Roundworm, Hookworm, Threadworm
How many of the above mentioned parasites causes inflammation of the intestinal tract? What is left when bath-sponges dries up?