Sunday, November 15, 2009

Science questions i need help with!?

1: Spores are usually fairly large and contain a good deal of stored food.


True


False








2: Some seed plants can be reproduced from parts of roots or stems.


True


False








3: Some flowers have petals and other flowers do not.


True


False








4: Anthers are structures that develop at the upper ends of pistils.


True


False








5: All flowers develop both stamens and pistils.


True


False








6: The ovary of a flower is located at the lower end of the pitsil.


True


False








7: Flowers that are wind-pollinated are likely to be incomplete.


True


False








8: Pollen grains are developed from parts of the plant ovary.


True


False








9: Hay fever may be caused by inhaling the pollen of golden rod plants.


True


False








10: In cross-pollination, pollen from the anthers of one flower is conveyed to the stigmas of other flowers.


True


False








11: A pollen tube is developed from a pollen grain that has reached the right kind of stigma.


True


False








12: If a mature sperm nucleus contains six chromosomes, a fertilized egg of the same species will also contain six chromosomes.


True


False








13: Seeds of flowering plants contain plant embryos and stored foods.


True


False








14: A newly sprouted monocot plant has two seed leaves.


True


False








15: Some fruits are dry and hard, but other fruits are fleshy.


True


False








16: Fruits are developed from fleshy parts of stamens.


True


False








17: White potatoes are generally produced by planting their seeds.


True


False








18: Some plants can be produced from underground parts such as bulbs or tubers.


True


False








19: A new plant which develops from a cutting has only one parent plant.


True


False








20: When a fruit tree scion is grafted on a stock, the stock is the part that will eventually produce the fruit.


True


False

Science questions i need help with!?
1. False - microscopic


2. True - spider plants


3. True - grass flowers


4. dunno...


5. True -they can self reproduce


6. True


7. True


8. False -from the stamen


9. True - any kind of pollen


10. True


11. True


12. True


13. True... - but plant embryoes?


14. ???


15. True - nuts and then normal fruit


16. true


17. True


18. True - daffodils


19. True - its a clone


20. ???





Sorry i didn't know all of them, and some im not 100%.
Reply:1: Spores are usually fairly large and contain a good deal of stored food.


(False )





2: Some seed plants can be reproduced from parts of roots or stems.


(True)





3: Some flowers have petals and other flowers do not.


(True )





4: Anthers are structures that develop at the upper ends of pistils.


(False )





5: All flowers develop both stamens and pistils.


(False)





6: The ovary of a flower is located at the lower end of the pitsil.


(True )





7: Flowers that are wind-pollinated are likely to be incomplete.


(True )





8: Pollen grains are developed from parts of the plant ovary.


(False)








9: Hay fever may be caused by inhaling the pollen of golden rod plants.


(True )





10: In cross-pollination, pollen from the anthers of one flower is conveyed to the stigmas of other flowers.


(True)





11: A pollen tube is developed from a pollen grain that has reached the right kind of stigma.


(True)





12: If a mature sperm nucleus contains six chromosomes, a fertilized egg of the same species will also contain six chromosomes.


(False)





13: Seeds of flowering plants contain plant embryos and stored foods.


(True)





14: A newly sprouted monocot plant has two seed leaves.


(False)





15: Some fruits are dry and hard, but other fruits are fleshy.


(True)





16: Fruits are developed from fleshy parts of stamens.


False





17: White potatoes are generally produced by planting their seeds.


(False )





18: Some plants can be produced from underground parts such as bulbs or tubers.


(True)





19: A new plant which develops from a cutting has only one parent plant.


(True)





20: When a fruit tree scion is grafted on a stock, the stock is the part that will eventually produce the fruit.


(False)


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