Help afew biology questions i need help with my book dosent explain it very well?

What is the most likely seed-dispersal mechanism for a walnut?


eaten by animals





catch in animal fur





wind





water








Where does the process of double fertilization occur in flowering plants?


in the pollen tube





in the stigma





in the central nucleus





in the ovule





The megaspore of a conifer will become ____


female gametophyte





male gametophyte





male sporophyte





female sporophyte





A flower that has sepals, petals, stamens, and pistils is called a _____ flower.


female


male


complete


incomplete

Help afew biology questions i need help with my book dosent explain it very well?
A walnut is most likely dispersed by animals eating it, because it is too heavy to be carried by the wind, healthy nuts sink in water, and they can't get caught in animals fur.





Double fertilization occurs inside the ovule.





The megaspore in a conifer becomes the female gametophyte.





A flower with sepals, petals, stamens, and pistils is called a complete flower because it has both male and female parts.
Reply:1. walnuts have a thick 'skin' around the nut, so this would have to be removed by an animal. Squirrels often bury nuts that they find and then forget them, which can result in germination and therefore seed dispersal.





2. In the ovule. One fertilizes the egg cell to form the embryo, the other fertilization gives rise to the endosperm.





3. I have a book entitled Plant Identification and Terminology that says the megaspore becomes the female gametophyte.





4. this would be a complete flower.