What are the advantages of connecting electrical devices in parallel with the battery instead of connecting them in series?

Why is an ammeter connected in a series?

Why is a voltmeter connected in parallel with a circuit?

Two 6 ohm resistances are connected in parallel and a 12 V battery is connected across the combination. Find the current flowing through each of the resistances.

By mistake, a voltmeter is connected in series and an ammeter In parallel with a resistance in a circuit, What will happen to the instrument?

A potentiometer wire of length 100 cm has a resistance of 10 ohm. It is connected in series with a resistance and a battery of emf 2V and of negligible internal resistance. A source of emf 10mV is balanced against a length of 40 cm of the potentiometer wire. What is the value of the external resistance?

What are the two types of fibres found in the connective tissue? Mention their functions.