“+How+Do+Plants+Grow+from+Seeds?”

__ 1-What is the life cycle of a conifer? __ Kawssar: the life cycle of a conifer has different stages: Seeds, seedling, growth, and cone development and pollination =Hawraa : life cycle of a conifer is divided into :seeds, seedling, growth, cone development and pollination.=
 * A seed has several parts.*Seeds can be sacttered by wind, water, and animal.*Seeds, germination, seedling, and growth and pollination are the stages in the life cycle of a flowering plant.*Seeds, seedling, growth, and cone development and pollination are the stages in the life cycle of a conifer.

**__2-How are seeds scattered?__** **Kawssar : Seeds are scattered by humans...mostly farmers and gardeners...by way of hand, gas powered machines and spreaders. The wind picks up and carries seeds from plants to places where they may find homes in the ground, germinate and become plants. Mice and other small animals and birds eat seeds and when they defecate, the seeds are moved/scattered. Squirrels also pick up seeds and plant them in hopes of creating storage areas so they have food in the winter.** **Hawraa: In general, there are many modes of seed dispersal: gravity, wind, water, animals or humans, and self dispersal.** ** Alia Olivia: ** Four main ways Wind, Animal(or human), Water and Self-Dispersal(This is when the fruit walls of some plants dry out and burst, the split ovary scatters all its seeds explosivly). __3-Suppose you removed the pollen from a flower. Explain what might happen to the flower.__ hawraa: pollen produces the male gametes, and reproduction need both male and female gametes, therefore without pollen no reproduction would take place. Kawssar : the pollen is the male organ producing the male gametes. Without the pollen, pollination will not occur thus, there will be no feconadation nor seeds production and no fruit.  Alia Olivia: Pollination will not occur since there will be no male gametes. thus no reproduction of the plant. **References ** **Cooney,T,Dispezio,M, Matamoros,A,Nequist,K,& Ostlund,K.(2000). Scott Foresman Science( Chapter 1 “ How Plants Live and Grow” p. A4-A26). Glenview,New York, United States of America: Addison-Wesley Educational Publishers Inc. ISBN: 0-673-59313-4. **
 * Conifer [Web]. Retrieved March 2011 from [] **