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Describe the different environmental factors that affect the direction of root and shoot growth

There are three main factors that affect root and shoot growth, which are light (phototropism), gravity (geotropism) and water (hydrotropism).Both roots and shoots show positive tropism whereby growth is sho...
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Answered by Maria F. • Biology tutor
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What is the difference between genotype and phenotype?

Everyone has two copies of each gene, one inherited from the mother and one from the father. The combination of both these copies is called the genotype. However the phenotype is what is visibly expressed. F...
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Answered by Sukhmani S. • Biology tutor
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Solve the simultaneous equations; 5x + 2y = 11, 4x – 3y = 18

Here you have 2 equations and you need to find the value of x and of y. First we are going to find the value of x. We do this by eliminating the y factor by multiplying and adding the equations. If we multip...
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Answered by Alice C. • Maths tutor
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What is a pathogen?

-it is a disease-causing microorganism -it is known to be infectious -examples: bacteria, fungi, viruses
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Answered by Maria F. • Biology tutor
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What is a bystander effect?

Bystander effect is when numerous people fail to help strangers in an emergency situation. Such as the case with Kitty Genovese, which happened in the year 1964 in the New York City. She was stabbed and rape...
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Answered by Marie P. • Psychology tutor
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