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- Scientific law
- Data
- Theory
- Deduction
Sciences MCQs
Two or more populations of different species living and interacting in the same area from _____.
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- Biosphere
- Population System
- Ecosystem
- Community
Diatomaceous earth is used for making _____.
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- Fertilizers
- Fire proof bricks
- Weedicides
- Insecticides
Programmed death of cells is called_____.
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- Necrosis
- Blood cancer
- Apoptosis
- All of these
Chemical substances used on living tissues that inhibit the growth of micro organism are called_____.
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- Antiseptics
- Disinfectants
- Antibiotics
- Vaccines
In lysogenic cycle the process of spearation of phage DNA from the hosts chromosome and initiation of lytic cycle is called_____.
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- Lysis
- Induction
- Lysogeny
- Adsorption
Who discovered glucose?
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- Emil Fischeraf
- Emil Fischer
- Anselme Payen
- Mandel
Visible light used in photosynthesis ranges from_____.
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- 380 – 750 nm in wavelength
- 300 – 700 nm in wavelength
- 350 – 750 nm in wavelength
- 390 – 790 nm in wavelength.
First Actions spectrum was obtained by using_____.
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- Algae
- Fungi
- Spirogyra
- Bacteria
Acromegaly is caused due to oversecretion of_____.
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- STH
- Thyroxin
- TSH
- ACTH