the blood bank wants to carry out an investigation to determine the distribution of blood groups of 1200 learners in a high school. Theu decide to use a sample to do their investigation in order ti save costs and time. They also want to get a reliable result. 1)state any 4 planning steps that the blood bank should put in placd to do this investigation before they draw blood from the learners, using a syringe. 2) State 3 precautions tgat the blood bank should take when drawing blood from the learners.​

What kind of action is a cause of air pollution

Apopulation of rabbits live in a local forest. some had a mutation for a large body and long legs. the graph below shows the number of both the mutant and the normal rabbits over 5 generations. which of the following statements is true for this scenario? question 7 options: the rabbits with the mutation were more successful with restricted food than the normal rabbits. both sets of rabbits were equally successful with the restricted food source.i the normal rabbits were more successful with restricted food than the rabbits with the mutation. the graph does not let us know which rabbit was more successful.

Which of the following is a true statement? question 8 options: populations can't evolve, only individual organisms. individuals have adaptations that can change over time. individuals have traits that may or may not make them successful at reproduction. individuals evolve to have adaptations.