大兴区新建村拆2017:SC和ENGLISH问题

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Q; How can the environment play a role in the traits we display???

Q; Why is the punnet square method not totally reliable? E.G.for eye colour and hair colour.

Q; Suppose an organism is extirpated from a local envirnment. In what way might other organisms be affected? Give example to support your answer.....

Q: Can dominance or recessiveness explain why two cats from the same litter may be different masses or have different leg lengths? Explain your answer.....

不懂.