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pollination and double fertilization
Pollen is carried from anther to stigma of a flower of same species. A pollen tube grows toward the ovary through the style. When the pollen reaches to ovary it releases two sperm: one fertilizes the egg to from zygote, the other fertilizes the large central cell to form the endosperm.
asexual reproduction in plants
-offspring are clones
-drop stems or other shoots that establish new roots and become clones
-send out shoots from the base of their trunks that go underground and create a new clone
-wind: need many seeds, can be distributed long distances
-animal: food for animal or can travel on animal
-water: is carried by water, ex. coconut
embryo in seed begins to grow again and develop into a plant
environmental conditions cue germination
-usually warm, moist soil
-some only germinate after going through a cold place
-some require the heat of a fire
function of shoots
transport water & nutrients from the roots to the leaves and food from the leaves to the roots
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