The one which is present in all aerobic species is _________?
A. Cytohrome c
B. Cytochrome a
C. Cytochrome a3
D. Cytochrome b
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The word virus is derived from Latin word venome meaning____________?
A. Sweet fluid
B. Sore fluid
C. Posionous fluid
D. Salty fluid
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Competition between species will be greatest if they attempt to occupy the same___________?
A. Ecosystem
B. Community
C. Habitat
D. Niche
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Amoeba belongs to which kingdom______________?
A. Prokaryotae
B. Plantae
C. Monera
D. Protista
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Animals with greatest number of similarities are grouped together in a/an___________?
A. Phylum
B. Family
C. Genus
D. Order
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Other name for Kingdom monera is_______________?
A. Protoctista
B. Prokaryotae
C. Archae
D. None of these
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Which of the following relationship is NOT an example of symbiosis?
A. Rhizobium and leguminous plants
B. Marchantia sporophyte and gametophyte
C. Algae and fungi in a lichen
D. Mycorrhizal fungi and tree roots
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In most ecosystems the greatest amount of energy flows through the____________?
A. Secondary consumers
B. Herbivores
C. Carnivores
D. Decomposers
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DNA or RNA of viruses is enclosed in _______________ coat?
A. Protein
B. Carbohydrate
C. Lipid
D. Dna
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All of the following are involved in nitrification except
A. Nitrobacter
B. Nitrosomonas
C. Rhizohium
D. All of these
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Word of the Day
23 Aug
Strained
showing signs of nervous tension or tiredness.
سوجن، بناوٹی

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