Atick attaches to the flesh of a dog and feeds on the dog's blood for energy. this negatively impacts the dog by causing it discomfort and removing nutrients that the dog's body could have used for life processes, but it does not kill the dog. the interaction described above is known as

measuring light intensity

light meters can be used to measure light intensity. the meter is held at the soil surface and pointed in the direction of the maximum light intensity, and then the meter is read.

errors can be made when measuring light intensity by accidentally shading the light meter. the reliability of the results can be checked by taking many samples.

instead of copying and pasting things off of tests or work done on computer which im sure you did, try and read over the question carefully