Most animals that live in deep oceanic waters are:
Options
(a) secondary consumers (b) tertiary consumers (c) detritivores (d) primary consumers
Correct Answer:
detritivores
Explanation:
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Most animals are tree dwellers in a:
Options
(a) Thorn woodland (b) Temperate deciduous forest (c) Tropical rain forest (d) Coniferous forest
Correct Answer:
Tropical rain forest
Explanation:
No explanation available. Be the […]
Match the following and select the correct option a) earthworm i:pioneer species b)succesion ii:detrivore c)ecosystem service iii:natality d)population growth iv:pollination
Options
(a) a-i, b-ii, c-iii, d-iv (b) a-iv, b-i, c-iii, d-ii (c) a-iii, […]
Industrial melanism is an example of:
Options
(a) Natural selection (b) Mutation (c) Neo Lamarckism (d) Neo Darwinism
Correct Answer:
Natural selection
Explanation:
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Increase in concentration of the toxicant at successive trophic levels is known as :
Options
(a) Biodeterioration (b) Biotransformation (c) Biogeochemical (d) Biomagnification
Correct Answer:
Biomagnification
Explanation:
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In which of the following interactions both partners are adversely affected ?
Options
(a) Predation (b) Parasitism (c) Mutualism (d) Competition
Correct Answer:
Competition
Explanation:
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In which of the following both pairs have correct combination about nutrient cycle?
Options
(a) Gaseous nutrient cycle – Carbon and sulphur, Sedimentary nutrient cycle – Nitrogen and Phosphorus (b) Gaseous nutrient cycle […]
In an ecosystem the rate of production of organic matter during photosynthesis is termed as:
Options
(a) Gross primary productivity (b) Secondary productivity (c) Net productivity (d) Net primary productivity
Correct Answer:
Gross […]
In a population of 1000 individuals 360 belong to genotype AA, 480 to Aa and the remaining 160 to aa, Based on this data, the frequency of allele A in the population is :
During biological nitrogen fixation, inactivation of nitrogenase by oxygen poisoning is prevented by :
Options
(a) Xanthophyll (b) Carotene (c) Cytochrome (d) Leghemoglobin
Correct Answer:
Leghemoglobin
Explanation:
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