Practice free Organism and Population (Botany) NEET multiple-choice questions online with instant answers and detailed explanations. No login required.
An intimate mutualistic relationship exists between a fungus and photosynthesising algae or cyanobacteria. This association is famously known as:
The NCERT states, 'Lichens represent an intimate mutualistic relationship between a fungus and photosynthesising algae or cyanobacteria.'
Which of the following interactions is characterized by both interacting species deriving benefits?
The NCERT text explicitly states, 'This interaction confers benefits on both the interacting species' when describing Mutualism.
The interaction between sea anemone and clown fish, where the fish gets protection from predators by living among stinging tentacles, while the anemone appears unaffected, is an example of:
According to NCERT, 'Another example of commensalism is the interaction between sea anemone that has stinging tentacles and the clown fish that lives among them. The fish gets protection from predators... The anemone does not appear to derive any benefit by hosting the clown fish.'
What is the primary role of mycorrhizae in plant interaction?
The NCERT text mentions, 'the mycorrhizae are associations between fungi and the roots of higher plants. The fungi help the plant in the absorption of essential nutrients from the soil while the plant in turn provides the fungi with energy-yielding carbohydrates.'
In which ecological interaction does one species benefit, while the other is harmed?
The summary states 'predation and parasitism (one benefits and the other suffers)'. This translates to one species benefiting and the other being harmed.
The interaction between species where both suffer damage is known as:
As per the NCERT summary, 'competition (both species suffer)' is the definition of this interaction.
The process where predators help keep prey populations under control, preventing them from achieving very high densities that could lead to ecosystem instability, is a significant ecological role of predation. This is highlighted by the example of:
The NCERT states, 'The prickly pear cactus introduced into Australia in the early 1920’s caused havoc... Finally, the invasive cactus was brought under control only after a cactus-feeding predator (a moth) from its natural habitat was introduced into the country.'
Which of the following is characterized by one species being harmed, while the other remains unaffected?
The NCERT summary defines 'amensalism (one is harmed, other unaffected)'.
In the context of population interactions, assigning a '+' sign for beneficial, '-' for detrimental, and '0' for neutral, which interaction correctly represents $(+, 0)$?
The NCERT states, 'Commensalism (one benefits and the other is unaffected)', which corresponds to a $(+, 0)$ interaction.
Brood parasitism, where the parasitic bird lays its eggs in the nest of its host and lets the host incubate them, is exemplified by the interaction between:
The NCERT describes, 'brood parasitism in action' in the context of 'the movements of the cuckoo (koel) and the crow in your neighborhood park during the breeding season'.
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The bank mixes NEET previous year questions (PYQs) with practice questions, each tagged with its exam appearances where applicable.