Maximum biomass & variable organisms are found in
Options
(a) river (b) pond (c) lake (d) estuary
Correct Answer:
estuary
Explanation:
Estuary is an ecotone between fresh water and marine water systems. The […]
Natality is balanced by mortality. There will be
Options
(a) decrease in population growth (b) zero population growth (c) increase in population growth (d) over population
Correct Answer:
zero population growth
Explanation:
Natality […]
Net primary productivity is
Options
(a) part of total energy stored by producers (b) energy produced by producers (c) energy stored by primary consumers (d) energy received by primary consumers
Correct Answer:
energy […]
Peacock eats a snake and snake eats frog and frog eats insect while insect eats green plant therm position of peacock is
Options
(a) primary producer (b) secondary producer (c) decomposer (d) top […]
Phytoplanktons are dominant in which of the following zone?
Options
(a) limnetic zone (b) profundal zone (c) littoral zone (d) benthic zone
Correct Answer:
limnetic zone
Explanation:
Plants and animals present in different […]
Plant grows in dry and saline soil is called
Options
(a) xerophyte (b) hydrophyte (c) halophyte (d) heliophyte
Correct Answer:
halophyte
Explanation:
Halophytes are those plants that occur naturally on soil or in […]
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 […]
2017 Copyright Doctor Dreams Training Academy