Which of the following organism form the decomposers
Options
(a) pteris (b) bacteria (c) saprophytic fungi (d) both bacteria & saprophytic fungi
Correct Answer:
both bacteria & saprophytic fungi
Explanation:
No explanation available. Be […]
Which of the following sequence is correct?
Options
(a) nudation → migration → competition → ecesis → stabilization (b) nudation → migration → ecesis → competition → reaction (c) nudation → ecesis → […]
Which of the following species are restricted to an area?
Options
(a) sibling species (b) endemic species (c) allopatric species (d) sympatric species
Correct Answer:
endemic species
Explanation:
No explanation available. Be the […]
Which one of the following is the food chain operating in ponds, lakes or sea?
Options
(a) grass → insects → frog → birds (b) alge(phytoplanktons) → small animals (zooplanktons) → fish → […]
Who coined the term ecosystem?
Options
(a) Ernst Haeckel (b) Charles Elton (c) E. P. Odum (d) A. G. Tansley
Correct Answer:
A. G. Tansley
Explanation:
No explanation available. Be the first to […]
Who stated that a population is a self regulating system?
Options
(a) Wynne Edward (b) T.R. Malthus (c) Lamarck (d) Darwin
Correct Answer:
T.R. Malthus
Explanation:
No explanation available. Be the first to […]
Leghaemoglobin occurs in
Options
(a) Coralloid root (b) BGA (c) Around bacteriods (d) Mycorrhiza
Correct Answer:
Around bacteriods
Explanation:
Leghaemoglobin occurs in around bacteriods. Bacteroides is a genus of gram-negative, obligate anaerobic, nonsporulating […]
Leghaemoglobin takes part in
Options
(a) Energy release (b) Stimulating growth of Rhizobium (c) Protecting nitrogenase from O₂ (d) N₂ absorption
Correct Answer:
Protecting nitrogenase from O₂
Explanation:
No explanation available. Be the […]
Mycorrhiza acts as
Options
(a) Mechanical tissue (b) Root hair in adverse conditions (c) Modified root (d) Organ for vegetative propagation
Correct Answer:
Root hair in adverse conditions
Explanation:
A hairlike outgrowth of […]
Mycorrhiza is helpful in
Options
(a) Synthesis of food (b) Getting nutrients from soil (c) Providing resistance against different regulators (d) Increase the fertility of soil
Correct Answer:
Getting nutrients from soil
Explanation: […]
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