Practice free Botany NEET multiple-choice questions online with instant answers and detailed explanations. No login required.
In a field experiment, when all Pisaster starfish were removed from an enclosed intertidal area, the result was:
2. Read page 233, XII NCERT
A species whose distribution is restricted to a small geographical area because of the presence of a competitively superior species is found to expand its distributional range dramatically when the competing species is experimentally removed. This is called:
2. Read page 235, XII NCERT
To get pollinated by a bee, the Mediterranean Orchid, Ophrys, employs:
1. Read page 238, XII NCERT
In a tide pool, 15 species of invertebrates were reduced to 8 after one species was removed. The removed species may be a:
Read page 233, XII NCERT
The logistic growth curve of animal population growth is more realistic than J shaped curve because:
2. Page 231, XII NCERT
Which of the following is not a function of predators?
Page 233, XII NCERT
Predators help in maintaining species diversity in a community, by reducing the intensity of competition among competing prey species.
When the population density reaches the carrying capacity, the logistic growth curve is said to be in:
Answer 4. Read page 231, XII NCERT
In general, which of the following is not an adaptation seen in parasites in accordance with their life style?
Answer 3. Read page 235, XII NCERT
Which type of animal tissue changes the diameter of a blood vessel?
(c) That would be smooth muscles present in the walls of the blood vessels.
Organisms with very high intrinsic growth rates have:
Answer 2. This is a characteristic of r-selected population.
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