Question

Read the following statement having two blanks A and B in cockroach, a ring of 6 - 8 blind tubules called A̲ is present at the junction of foregut and midgut while at the junction of midgut and hindgut a ring of 100 - 150 yellow coloured yellow coloured thin filamentous B̲ is present.
The one correct option that fills the two blanks is

Answer 1

Answer:

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