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Variation in the population occurs through mutations. Some organisms have advantages that allow them to survive the selective pressure (thus could be Food shortage or predators) Survivors reproduce and pa...

Recall that the primary hormone involved in water retention is anti- DIURETIC- hormone (ADH). If your rember that diuretic means increased loosing water through urination then you will know that the funct...

The first step in tackling this is drawing a genetic diagram (which I would draw on the whiteboard). Say we are looking at a cross between two parents with genotype AaBb, so the cross would look like AaBb...

Glycolysis is the first stage of aerobic and anaerobic respiration. Glycolysis occurs in the cytoplasm of a cell as glucose can't pass the mitochondrial membranes and the enzymes needed for its breakdown ...

Features/organelles present in both animal and plant cells include: the nucleus (where the DNA/genetic information is stored - this controls the activities of the cell), the cell membrane (a thin containi...