What are lichens made of?
A combination of fungal hyphae and algal cells viewed under a light microscope at a hundred times magnification.
Examination of long, rectangular onion epidermal cells under the microscope at 100x magnification.
Let’s simulate protein digestion in the stomach using a mixture of hydrochloric acid and pepsin.
Through mild physical exercise, even a trained body doubles the number of breaths it takes...
Examination of the cells and stomas on the epidermis of a pelargonium at 100x magnification.
Proteins are sensitive to environmental changes. In this video we demonstrate how easy it is to...
When the patellar ligament is lightly tapped, the extensor muscle stretches slightly.
Demonstrating a method to determine where exactly the blind spot is in our visual field.
In strong light the pupil contracts, while in low light it dilates.