Practice free Organism and Population (Botany) NEET multiple-choice questions online with instant answers and detailed explanations. No login required.
Which option is correct for the given statement .
Statement X : Density dependent factors are intrinsic
Statement Y : They are generated in population only
If the Birth rate is 10 and death rate is 0 then what is VITAL INDEX ?
Which is appropriate for the following statement ? Statement X : Pacific salmon fish reproduces only once in its life time. Statement Y: In a reproductive season it lays 2,80,000,000 eggs.
Mycobiont Supplies X to phycobiont and phycobiont supplies Y to mycobiont, then what is true for X and Y ?
In a lichen, the mycobiont (fungal component) provides minerals and water to the phycobiont (algal component), while the phycobiont performs photosynthesis to produce organic nutrients (like carbohydrates) which are shared with the mycobiont. Therefore, X is minerals and Y is organic nutrients.
A plant formed by the combination of algae and fungi is a pioneer of which type of succession ?
Lichens, a symbiotic association of algae and fungi, are often the pioneer species in primary succession on bare rock (xerosere). They are capable of withstanding harsh conditions and contribute to soil formation by breaking down the rock surface.
Y <-----> X having interspecific relations in which animalwhichis not affected is X shows excretory organs which are also seen in Yand is Z located in its gills then.... what are X,Y,Z - ?
In a population of salmon fish, potential Natality is 10,000 while realised mortality is 200, then the Vital Index =
What is true for both the organism showing interspecific compitition ?
Interspecific competition occurs between different species that compete for the same resources, such as food, light, or space. This competition typically results in more or less harmful effects to both organisms involved, as they expend energy and resources in the struggle to obtain what they need. The correct answer is 'more or less harmful effect to both.'
Write appropriate option for antibiosis
Antibiosis is a biological interaction where one organism produces substances that are harmful or lethal to another organism. Penicillium fungi produce penicillin, which is an antibiotic that inhibits the growth of certain gram-positive bacteria. Thus, the correct answer is 'Penicillium fungi and certain gram+ve bacteria.'
In order to find out VITAL INDEX in Rampur Village, following information was gathered Death Rate = 1/x Birth Rate = z Average population = 1/y . What is the Vital Index ?
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