Which one of the following is male gametes?
Options
(a) megasporangium (b) embryo sac (c) microspore (d) antipodal cell
Correct Answer:
microspore
Explanation:
No explanation available. Be the first to write the explanation […]
In a food chain, the total amount of living material is depicted by
Options
(a) pyramid of energy (b) pyramid of biomass (c) pyramid of numbers (d) all of the above
Correct Answer: […]
In a forest ecosystem fungi comes under
Options
(a) secondary consumer (b) tertiary consumer (c) decomposer (d) primary producers
Correct Answer:
decomposer
Explanation:
Fungi are non-green plants which are saprophytes i.e. feed on […]
In a grassland ecosystem, if the number of primary producers is approximately 6 million plants the number of top carnivore (in million) which may be supported by it may be
Options
(a) 3 […]
In an aquatic ecosystem, the trophic level equivalent to cows in grasslands is
Options
(a) phytoplankton (b) zooplankton (c) nekton (d) benthos
Correct Answer:
zooplankton
Explanation:
Zooplankton are a type of heterotrophic plankton […]
In an uqright pyramid of biomass, the herbivores occupy the position
Options
(a) 4 (b) 2 (c) 3 (d) 1
Correct Answer:
2
Explanation:
No explanation available. Be the first to write the […]
In Delhi, there is a large gap between birth & death rate. This shows that Delhi has a population of
Options
(a) school-going children (b) more old persons (c) middle-aged persons (d) adult […]
In India, human population is heavily weighed towards the younger age group as a result of
Options
(a) short life span of many individuals and low birth rate (b) short life span of […]
In India, tropical rain forests are found in
Options
(a) Darjeeling (b) Andamans (c) Karnataka (d) Jammu and Kashmir
Correct Answer:
Andamans
Explanation:
No explanation available. Be the first to write the explanation […]
Major source of oil moisture is
Options
(a) rain water (b) underground water (c) river water (d) atmospheric humidity
Correct Answer:
rain water
Explanation:
It is mainly rain water which is retained by […]
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