life processes 2
Terms
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- describe the process of water dispersal
- e.g. the coconut plant; seeds fall onto the ground, high tide washes them away because they are light. washed onto shore where they can germinate again.
- What are the three main ways in which pollination can occur?
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1: Insect Pollination
2: Wind Pollination
3: Self Pollination - give an example of wind dispersal
- the wings of a sycamore
- describe the process of SELF POLLINATION
- When the pollen of a flower is deposited on its own stigma.
- there are two types of animal dispersal, can you describe them?
- hooked fruits attach to the animal e.g. burdock and goosegrass. Small hard coated seeds e.g. blakberry and strawberry cannot be digested and pass through the animal undamaged.
- describe the process of WIND POLLINATION
- many plants do not rely on insects. Their pollen grains are smooth and very light for carrying in the air.
- What are the four main types of seed dispersal?
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1: WIND DISPERSAL
2: ANIMAL DISPERSAL
3: SELF DISPERSAL
4: WATER DISPERSAL - describe the process of self dispersal
- the plant throws seeds some distance from the parent plant e.g. sweet pea
- Describe the process of INSECT POLLINATION
- insect visits flower yo collect nectar and pollen for food. Some grains attach to insect. The insect visits another flower and transfers the pollen.
- what do you call the transfer of pollen from the ANTHER to the STIGMA?
- Pollination