Pond is an example of which of the following ecosystem?
Options
(a) natural (b) artificial (c) grassland (d) forest
Correct Answer:
natural
Explanation:
Ponds represent a natural, self-regulatory fresh water ecosystem. The salient […]
Population density of terrestrial organisms is measured in terms of individual per
Options
(a) meter³ (b) meter⁴ (c) meter (d) meter²
Correct Answer:
meter²
Explanation:
No explanation available. Be the first to write […]
Population exploiting a resource rapidly, and showing unbounding increase in numbers are
Options
(a) k – selected (b) r – selected (c) growth selected (d) unselected
Correct Answer:
r – selected
Explanation:
No […]
Population explosion has occured in the last
Options
(a) 500 years (b) 300 years (c) 100 years (d) 50 years
Correct Answer:
50 years
Explanation:
No explanation available. Be the first to write […]
Population of different species interacting in an ecosystem
Options
(a) biotic community (b) abiotic community (c) both (a) and (b) (d) community
Correct Answer:
biotic community
Explanation:
No explanation available. Be the first […]
Populations termed r-strategists
Options
(a) have J-shaped growth curve (b) are usually pioneer species (c) have type III survivorship curve (d) all of the above
Correct Answer:
all of the above
Explanation:
No […]
Predation and parasitism are which type of interactions?
Options
(a) (+ , +) (b) (+ , O) (c) (- , -) (d) (+ , -)
Correct Answer:
(+ , -)
Explanation:
No explanation […]
Pyramid of energy in a pond ecosystem is always
Options
(a) inverted (b) upright only (c) irregular (d) linear
Correct Answer:
upright only
Explanation:
No explanation available. Be the first to write the […]
Ratio of natality and mortality of a population expressed in percentage is
Options
(a) vital index (b) growth rate (c) survival rate (d) biotic potential
Correct Answer:
vital index
Explanation:
No explanation available. […]
Rhododendron is characteristic of vegetation of
Options
(a) tropical zone (b) gangetic plains (c) alpine zone (d) mangrove belt
Correct Answer:
alpine zone
Explanation:
No explanation available. Be the first to write the […]
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