Question

Biology grade 12 questions pls answer it ​

Answer 1

wild pollinated flowers: pollen grains are small,light and produced in large number so a lot of wastage occur

insect pollinated flowers: pollen grains are large sticky and spiny and are produced in small number so no wastage occur

Answer 2

Explanation:

HEY MATE.

HERE IS YOUR ANSWER

WIND POLLINATION

• TRANSFER OF POLLEN GRAIN FROM ANTHER TO STIGMA BY WIND CURRENT
• EXAMPLE OF ABIOTIC POLLINATION
• POLLEN GRAIN ARE SHORT IN NATURE
• POLLEN GRAINS TO REACHING STIGMA LARGE AMOUNT OF POLLEN ARE USED, LARGE AMOUNT OF POLLEN ARE WASTE

INSECT POLLINATION

• TRANSFER OF POLLEN GRAINS FROM ANTHER TO STIGMA BY THE HELP OF INSECT
• EXAMPLE OF BIOTIC POLLINATION
• POLLEN GRAINS ARE STICKY LONG IN NATURE
• POLLEN GRAIN ARE TAKEN BY INSECT IN THEIR POLLEN BAG SO NO WASTAGE OF POLLEN

GIETONOGAMY

TANNER OF POLLEN GRAINS FROM ANTHER TO STIGMA OF SAME PLANT TO DIFFERENT FLOWER

SO, THE SAME PLANT CONTAIN SAME GENE

THEREFORE GENETICALLY IDENTICAL

BUT THE DIFFERENT FLOWER CONSTRAIN DIFFERENT MORPHOLOGICAL PATTERN

THEREFORE MORPHOLOGICAL SIMILAR

HOPE HELP YOU

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