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Bacteria resides virtually everywhere around (and within) us. In schools and university conditions, bacteria cultures are incubated at 25°C or lower to reduce the chances of growing harmful pathogens whic...
Transpiration is the upward movement of water from the root to the cell. This happens in the xylem which is made of lignified cells. The flow is only in one direction and the movement of water is created ...
DNA polymerase is an enzyme that catalyses the synthesis of DNA molecules from free nucleotides. After DNA helicase unwinds the DNA molecule, DNA polymerase reads the existing DNA strands and incorporates...
This question is asking for an outline of how antibody is produced in an immune response, and for the 4 marks, we need to identify 4 or more steps using key words in this process. This question could also...
Reflex reactions are subconscious, they bypass the brain. Receptors detect a sensory stimulus, in this case- pain. Receptors stimulate sensory neurons, creates an electric impulse which travels to the spi...
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