The class want to estimate the number of insects in their school grounds. Describe how they can make the estimate reliable.

After fertilization, which type of cellular division is responsible for the growth and development of a complex, multicellular organism?

Explain two reasons you think it is important for scientists to search for new ways to treat cancer

Which of the following shows the correct order in which light information travels through the eye? (2 points) lens, pupil, retina, optic nerve pupil, lens, retina, optic nerve pupil, lens, optic nerve, retina lens, pupil, optic nerve, retina