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Biology

Biology
At which stage in its life cycle does the silkworm yield the fiber of commercial use

Larva
Imago
Pupa
Egg

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Biology
Part of the plant where photosynthesis generally occurs

Branches
Leaves
Roots
Flowers

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Biology
Eutrophication is the result of

Pteridophytes
Gymnosperm
Algae and aquatic plants
Bryophytes

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Biology
Placenta is the structure formed

by foetus only
None of these
by the union of foetal and uterine tissue
by fusion of germ layers

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Biology
Which of these is unique to flowering plants?

Pollen production
Double fertilization
An embryo surrounded by nutritive tissue
Haploid gametophytes

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Biology
What organelle carries out photosynthesis?

All of these
Chromosomes
Chloroplasts
Ribosomes

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