A student has the high-power lens in position and appears to be intently observing the specimen. The instructor, noting a working distance of about 1 cm, knows the student isn't actually seeing the specimen. How so?

Explanation:

Based on this the student is out if the focus, and just viewing on  the dust.Basically, high -power lens is a non oil immersion lens, with a short working distance  of 1cm,which  will be about  a few millimeters.Hence the student will be out of focus, just carry out a fruitless effort  focusing on the dust, missing the focus on the specimen.

its like this, "if i give a plant an unlimited amount of sunlight,then the plant will grow to its largest possible size."

hope it let me know if it does or doesn't =^-^=

the diploid number of chromosomes is sometimes represented by the symbol 2n. for the fruit fly, the diploid number is 8, which can be written as 2n = 8, where n represents twice the number of chromosomes in a sperm or egg cell.