a group of learners were asked to conduct a survey to determine the prevalence of short-sightedness and long-dightedness amongst boys and girls in the FET phase. They used a board of letters with different sizes placed at a 1metre(short-sightedness) and 8metres(long-sightedness) distance. The results of the survey showed that 120 boys were short-sightedness; 80 boys were long-sighted ;160 girls were short-sighted and 40 girls were long-sighted state any three planning steps for this investigation​

label a cell membrane

label b cytoplasm

label c ribosomes

label d dna

the membrane forms the outside of the cell

cytoplasm is the liquid within

ribosomes are the components within that distribute rna

the dna is the genetic make-up

stimulus is a change in the environment that causes an organism to react. the response is the reaction to the stimulus. some examples of stimuli for zebras are drought, to many predators, and bad feeding grounds such as dead grass or plants. zebras respond to stimuli just like all other living organisms

not always but somethings can be reproduced in a laboratory.