ORGANISMS AND POPULATIONS Set 6

Number of pre-reproductive and reproductive individual is almost equal ✘ Post-reproductive individuals are comparatively fewer ✘ The population size remains stable ✘ All of the above ✔ NULL ✔ NULL NULL

Antibiosis ✘ Competition ✘ Predation ✘ Commensalism ✔ NULL ✔ NULL NULL

1000 ✘ <10 ✘ >100 ✘ 1000 ✔ NULL ✔ NULL NULL

1920 ✘ 1930 ✘ 1925 ✘ 1929 ✔ NULL ✔ NULL NULL

Logistic growth ✘ Exponential growth ✘ Sigmoid growth ✘ All of these ✔ NULL ✔ NULL NULL

Natality increases and mortality decreases ✘ mortality decreases ✘ Natality increases ✘ Mortality increases ✔ NULL ✔ NULL NULL

Shrub land ✘ Forest ✘ Desert ✘ Grassland ✔ NULL ✔ NULL NULL

Poikilothermal ✘ Cold-blooded ✘ Both (a) and (b) ✘ Isothermic ✔ NULL ✔ NULL NULL

Biome ✘ Ecosystem ✘ Individual ✘ Species ✔ NULL ✔ NULL NULL

Geographic displacement ✘ Geographic overlapping ✘ Geographic non-overlapping ✘ Habitat displacement ✔ NULL ✔ NULL NULL