An association of individuals of different species living in the same habitat and having functional interactions is:
Options
(a) Biotic community (b) Ecosystem (c) Population (d) Ecological niche
Correct Answer:
Biotic community
Explanation: […]
A population will not exist in Hardy -Weinberg equilibrium if :
Options
(a) There are no mutations (b) There is no migration (c) The population is large (d) Individuals mate selectively
Correct Answer: […]
The following graph depicts changes in two populations (A and B) of herbivores in a grassy field A, possible reason for these changes is that:
Options
(a) Population B competed more successfully for […]
Given below is the representation of the extent of global diversity of invertebrates. What groups the four portions (A-D) represent respectively?
Options
(a) (A)-Insects (B)-Crustaceans (C)-Other animal groups (D)-Molluses (b) (A)- Crustaceans (B)-Insects […]
Given below is a simplified model of phosphorus cycling in a terrestrial ecosystem with four blanks (A-D). Identify the blanks.
Options
(a) (A)-Rock minerals (B)-Detritus (C)-Litter fall (D)-Producers (b) (A)-Litter fall (B)-Producers (C)-Rock […]
During ecological succession:
Options
(a) the establishment of a new biotic community is very fast in its primary phase (b) the numbers and types of animals remain constant (c) the changes lead to […]
Body temperature of many animals correspond to the environmental temperature. They are known as
Options
(a) heterothermic (b) homeothermic (c) endothermic (d) poikilothermic
Correct Answer:
poikilothermic
Explanation:
No explanation available. Be the first […]
Energy transfer from one trophic level to other, in a food chain is
Options
(a) 1% (b) 10% (c) 2% (d) 20%
Correct Answer:
10%
Explanation:
No explanation available. Be the first to […]
High increase in population is due to
Options
(a) decrease in death rate (b) better medicinal facilities (c) increase in average life span (d) all of the above
Correct Answer:
all of the […]
If the rate of addition of new members increases with respect to the individual lost from the population, then the graph obtained has
Options
(a) declined growth (b) zero population growth (c) exponential […]
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