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Botany NEET Questions — Free MCQ Practice

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Write appropriate option for antibiosis

A. Penicillium fungi and certain gram+ve bacteria B. Penicillium fungi and certain gram-ve bacteria C. Spirocheate and fermicutes D. None of these

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Explanation

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.'

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Which path is followed by plants as a part of adaptation in an ecosystem where Kangaroo rat is living ?

A.

C₃ Path

B.

C₄ Path

C.

CAM Path

D.

TCA Path

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Explanation

Kangaroo rats live in arid environments and have adapted to such conditions by using the CAM (Crassulacean Acid Metabolism) pathway. This pathway allows them to minimize water loss by fixing CO2 at night.

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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 ?

A. xyz X 100 B. z/xy =100 C. xy/z X 100 D. 100/xyz

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In the section of lichen whichlayer is seen just below â€œ upper cortexâ€

A. Medulla B. algal layer C. lower cortex D. all of these

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From the given option find out the correct pair ?

A. Mesofauna - Earthworm B. Macrofauna - spider C. Microfauna - fungi D. None of these

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Give correct option for the given true and false statements

(i) Some insects, birds and mammals living in warm and dry climate have more darker black pigments than the races of same species living in cold and humid climate.

(ii) Tempreture variation is much lesser in aquatic habitat compared to terrestrial habitat

(iii) In deep fresh water lakes, there is gradual incrase in tempreture from surface to the bottem

(iv) In an aquatic habitat production increases with insing depth (T =True, F = False)

A.

FFFF

B.

TFTF

C.

TTFT

D.

FTFT

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Which ofthe following is not included as the climax community of general process of succession ?

A. Sedge-meadow stage B. phytoplanktones C. Forest D. Grassland

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Explanation

Phytoplanktones are not considered a climax community in the general process of succession. The climax community is typically more stable and resilient, often represented by forests, grasslands, or other complex ecosystems. Phytoplanktons are usually part of earlier successional stages in aquatic environments.

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What is the composition of soil with high waterlogging capicity ?

A. Sandy soil B. Black soil (loan soil) C. Rocky soil D. Any one of these

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Explanation

Black soil, also known as loam soil, has a high water-holding capacity. This is because it contains a mix of sand, silt, and clay, which helps in retaining water and nutrients, making it suitable for areas prone to waterlogging.

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Recently a village was badly affected by jaundice and Dengue, which of the following will decrease due to this ?

A. No.of persons B. area C. Birth rate D. Death rate

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Which is related to the given statement ? In the begining of summer crow and koel lays eggs.

A. As the light intensity decrease reproductive organs become active B. In some Birds increase or decrease in intensity of hight- makers reproductive organs active or inactive respecctivity C. with increase in temperature, gonads become active D. none of these

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Botany MCQs for NEET — Practice Questions with Answers

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