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Biology

Biology
Which part of flower produces pollen grains that are generally yellowish in color?

Carpels
Sepals
Petals
Stamens

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Biology
The organs of the urinary system are

Ureter
Urinary bladder
All of these
Kidney

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Biology
Which one of the following is an enzyme ?

Trypsin
Keratin
Gastrin
Vasopressin

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Biology
The group of pistals or carpels is collectively spoken off as a

Androecium
Gynaecium
Corolla
Callyx

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Biology
Who discovered the insecticidal properties of DDT

Rachel Carson
Paul Muller
R.H. Painter
Othmanzedicer

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Biology
In a bisexual flower if androcium and gynoecium mature at different time the phenomeon is known as ________

None of these
Dichogamy
Haterogamy monogamy
Herpogamy

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