Q.Match the items of Column I with those of Column II:
Column I

The correct pairings are:

• (a) Ammonotelism — (iii) Bony fish
• (b) Bowman's capsule — (v) Renal tubule
• (c) Micturition — (iv) Urinary bladder
• (d) Uricotelism — (i) Birds
• (e) ADH — (ii) Water reabsorption …

This matching exercise pulls together ideas from waste excretion, kidney structure and hormonal control, so it helps to take each item in turn and connect it to where it truly belongs.

• (a) Ammonotelism — (iii) Bony fish. Ammonotelism is the excretion of nitrogenous waste in the form of ammonia. Ammonia is highly soluble and needs a great deal of water to be flushed out, so this strategy suits animals living surrounded by water, such as bony fish.
• (b) Bowman's capsule — (v) Renal tubule. The renal tubule of a nephron begins as a double-walled, cup-shaped structure called Bowman's capsule, which wraps around the glomerulus. It is therefore the starting part of the renal tubule.
• (c) Micturition — (iv) Urinary bladder. Micturition is the release of stored urine. Urine collects and is held in the urinary bladder until a voluntary signal allows it to be voided, so the two go together. …

Method: Solving Match-the-Column Questions

Match-the-column questions test recall of many small, specific facts at once. The efficient method is to resolve the most certain pairs first, then use elimination for the rest — not to work strictly left to right.

Steps

Step 1: Identify what category each column represents

Read both columns before answering anything. Column I here mixes a waste-excretion strategy, a kidney structure, an event, another strategy and a hormone; Column II mixes an animal group, a function, an event, a group and a structure. Knowing the category of each item narrows the possible matches before you recall any specific fact.

Step 2: Match the pairs you are certain of first

Pick off items with a single unambiguous link — micturition can only pair with something about urine release or storage, so match it to the urinary bladder immediately and set it aside.

Step 3: Use a defining keyword to link the remaining items …