Multiple choice

Match the column – I with column – II and select the correct option.

 
Column – I
Column – II
A. Benthic 1. Organisms that swim in the ocean freely
B. Lentic 2. Organisms living in ponds and lakes
C. Lotic 3. Organisms living at the bottom of water
D. Nektons 4. Organisms living in rivers and streams

  1. A - 4, B - 3, C - 2, D - 1

  2. A - 2, B - 1, C - 4, D - 3

  3. A - 2, B - 1, C - 3, D - 4

  4. A - 3, B - 2, C - 4, D - 1

  5. A - 1, B - 2, C - 3, D - 4
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Organisms living at the bottom of water are called benthic animals. Lentic means still water systems (ponds and lakes) whereas lotic refers to flowing water systems (rivers and streams). Nektons are organisms that swim in the ocean and its movements are primarily controlled by currents, tides and waves.

Keep practicing — related questions