Match List-I with List-II
| List-I | List-II |
|---|---|
| Strategies of an organism | Example |
| (A) Organisms breed only once in their lifetime | (I) Desert lizard |
| (B) Organisms breed many times during their lifetime | (II) Oysters |
| (C) Organisms produce large number of small sized offspring | (III) Salmon fish and bamboo |
| (D) Some organisms show behavioral responses with variation in their environment | (IV) Birds and mammals |
Choose the correct answer from the options given below.
Answer & explanation
Correct answer: option 2
The correct answer is Option (2) → (A)-(III), (B)-(IV), (C)-(II), (D)-(I)
(A) Organisms breed only once in their lifetime — this matches (III) Salmon fish and bamboo. Pacific salmon and bamboo breed once and then die.
(B) Organisms breed many times during their lifetime — this matches (IV) Birds and mammals. Most birds and mammals breed again and again during their lives.
(C) Organisms produce large number of small sized offspring — this matches (II) Oysters. Oysters and pelagic fishes release very many small eggs; birds and mammals produce a few large young instead.
(D) Some organisms show behavioral responses with variation in their environment — this matches (I) Desert lizard. Desert lizards cannot control body temperature internally, so they bask in the sun when cold and move into shade when hot.
NCERT Extract:
Life History Variation – “… Under a particular set of selection pressures, organisms evolve towards the most efficient reproductive strategy. Some organisms breed only once in their lifetime (Pacific salmon fish, bamboo) while others breed many times during their lifetime (most birds and mammals). Some produce a large number of small-sized offspring (Oysters, pelagic fishes) while others produce a small number of large-sized offspring (birds, mammals).”