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When seeing this sort of question, I would handle it by explaining what both a receptor and an effector is firstly and giving examples. Secondly, I would explicitly state the difference to make sure the a...

A balanced diet supplies all the essential nutrients for the body to function. There are 7 essential nutreints, each with a differnt function in the body. Carbohydrates provide energy Fats/lipids act as a...

Genotype is the genetic composition for a particular phenotype. It involves both alleles from both the father and mother. So a genotype of the colour of eyes (blue) could be bb or BB or Bb. 

Homeostasis can simply be described as the maintenance of a constant internal environment. Human bodies must get rid of accumulating toxic substances which can harm the body. Things like sugar concentrati...

The atria have a shorter contraction time as the ventricles as they only need to pump blood into the ventricles. The contraction time of the ventricles is longer as they need to pump blood through the aor...