If you were looking at a cell specimen through a microscope, how could you tell that the cells belonged to a plant?

Structurally, plant and animal cells are very similar because they are both eukaryotic cells, however the few differences that exist between plant and animals are very significant -

Plant cells can be larger than animal cells. The typical range for an animal cell varies from 10 to 30 micrometers while that for a plant cell stretches from 10 to 100 micrometers. Apart from size, the main structural differences between plant and animal cells lie in a few additional structures found in plant cells. These structures include: chloroplasts, the cell wall, and vacuoles.

There is one main difference the cell of a plant is bigger than the cell of a animal

5 w for 1hr = 5x60x60 joules=300x60=3000x6=18,000j as total energy conversion. efficiency of bulb needed for radiant to thermal within 18000