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6. What are cells which have yet to differentiate?
- Basic cells
- Stem cells
- Undifferentiated
7. Plants often get eating by animals, this is why..
- They need to continue to grow throughout their life to replace eaten parts
- They can stop growing after a certain amount of time
8. The specialisation of cells to make them suitable for their purpose is called
- Adaptation
- Differentiation
- Specialisation
9. Which stem cells are slightly more useful because they have a greater power of differentiation?
10. Which is suited to growing for a time, then stopping to use energy for other purposes? (e.g. movement)
11. Which is not an example of stem cells?
- In the growing points (meristems) of plants
- Skin tissue
- Certain adult tissues (e.g. bone marrow)
- Embryos
12. ____________ have very simple main requirement - light and water - so growing at certain points allows them to concentrate on ways to do this
13. Which describes an animal, not a plant?
- All regions of the body grow
- Growth is restricted to special growing points called meristems (mainly the tip of the roots and shoots)
14. Which tends to grow a certain size then stop growing?
15. Animals have a greater variety of organs and tissues than plants so..
- Growing all over makes sure these grow in conjunction with each other
- Growing from certain points means that these can continue to work together
16. Which describes a plant, not an animal?
- Growth is restricted to special growing points called meristems (mainly the tip of the roots and shoots)
- All regions of the body grow
17. What is a zygote?
- Fertilised egg
- Cell
- Animal
18. Which use of stem cells could be useful to potential cure human conditions but comes with ethical issues and the right to life?