Edexcel IGCSE Biology Exam Technique - Planning Investigations with CORMMSS

Описание к видео Edexcel IGCSE Biology Exam Technique - Planning Investigations with CORMMSS

Here's a model answer for the first question:

Set up two groups of rats, one that gets lots of calcium and another that gets less calcium.
The rats should be same species, age and sex.
The experiment will be repeated with different rats.
The growth of the rats will be measured by weighing their mass with a balance, after they have grown for a week.
The rats should be given the same type and mass of food.

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