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What is transpiration?

Transpiration is the process in plants by which water travels in a stream from the roots to the leaves where it evaporates. The water is pulled up from the roots through the xylem via the cohesion-tension me...
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Answered by Olivia S. • Biology tutor
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What are the different phases of the cell cycle?

The cell cycle begins with interphase (G1,S G2) then follows on to mitosis and ends with cytokinesis. G1 phase - Protein synthesis and preparation for DNA replication S phase - DNA replication G2 phase - Org...
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Answered by Olivia S. • Biology tutor
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What is the difference between the pulmonary and systemic circuits of the cardiovascular system?

The systemic circuit carries oxygenated blood from the heart around the body then carries the deoxygenated blood from the body back to the heart. The blood leaves the left ventricle of the heart via an arter...
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Answered by Olivia S. • Biology tutor
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What can I say about the roots of a quadratic equation without actually calculating them?

If a quadratic equation is of the form ax 2 +bx+c, calculate D (Discriminant) whose value is b 2 -4ac. If the value of D is negative, the equation has imaginary roots. If the value of D is positive, the equa...
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Answered by Swapnil S. • Maths tutor
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Why are elements of group 0 chemically inert?

Elements of group 0 are called noble gases. These elements have stable arrangements of electrons in their outermost shell. The chemical reactivity of a group highly depends on the number of electrons in the ...
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Answered by Swapnil S. • Chemistry tutor
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