WorksheetsClass 7th
Total questions: 20
Worksheet time: 10mins
If male gamete fuses with female gamete, what will be the result structure
Embryo
Zygote
Ovary
None of the above
What is the condition of zygote
Haploid
Diploid
Haploid,diploid
None of the above
Pollen tube grows towards
Gynoecium
Androecium
Stigma
None of the above
The flowers which contains male and female reproductive organs are called
Bi sexual
Unisexual
Both 1 and 2
All of these
A pistil surrounded by male organs called
Style
Stamen
Stigma
None of the above
The transfer of pollen grains to another flower occurs by
Wind
Water
Insects
All the above
Pollination in aquatic plants takes place
Water
Air
Animals
Insects
After Pollen grain falls on the stigma of a flower the next step is
Pollination
Fertilization
Cell division
Cross pollination
If air carries Pollen grains from one flower to another flower that comes under
Pollination by wind
Pollination by water
Pollination by animals
None of the above
Major insects helps for pollination
Honey bees
Butterflies
Both 1 and 2
none of the
Dispersal of seeds or fruits occurs by
Water
Animals
Air
All of the above
When can a seeds disperse ?
Before maturation
After maturation
After ovulation
None of the above
Drum stick seeds have flying character because of
Winged seeds
After maturation
After ovulation
None of the above
Maple seeds are dispersed by
Air
Water
Animals
Humans
Fibrous coat is present in
Xanthium
Coconut
Urena
None of the above
What is the seed coat scientifically called
Integument
Endosperm
Sperm
None of the above
what type of external characters effect seed dispersal?
High tides
Higher blows of air
Both high tides& higher blows of air
None of the above
Coconut fruits moved from one place to another through
Air
Water
Animals
none of the above
Seeds that are dispersed by animals are
Feathery seeds
Hairy seeds
Hook seeds
Lightweight seeds
What helps to embryo to develop fruits
Mitosis
Meiosis
Both 1&2
None of the above
