TīmeklisRods and cones are light-sensitive cells in the retina. When stimulated they generate electrical impulses, which pass to the brain along the optic nerve. The normal retina has rods that see only black, white, and … TīmeklisThin, transparent protective outer covering that prevents entry of microorganisms. Transparent part at front of eye that allows light to enter. It also causes slight …
Common defects of the eye and how they can be overcome
http://biology-resources.com/biology-questions.html TīmeklisHormones do many things in the body, two very important roles are controlling puberty and the menstrual cycle. Learn how these work and which hormones are in... readingstar international
Human Eye Anatomy Quiz - Sporcle
TīmeklisIn this resource, you’ll find a 2-page PDF that is easy to download, print out, and use immediately with your class. The first page is a labelling exercise with two diagrams of the human eye. One is a view from the outside, and the other is a more detailed cross-section. Challenge learners to label the parts of the eye diagram. On the second … TīmeklisSelf-Assessment Questions. Section 1. Principles of biology. 1 Cells and tissues - questions / answers. 2 The chemicals of living cells - questions / answers. 3 Energy from respiration - questions / answers. 4 How substances get in and out of cells - questions / answers. 5 Photosynthesis and nutrition in plants - questions / answers. TīmeklisThe Human Eye: Structure. The eye is a highly specialised sense organ containing receptor cells that allow us to detect the stimulus of light. Receptor cells that are sensitive to light, known as rods, and receptor cells that can detect colour, known as cones. The ciliary muscle - a ring of muscle that contracts and relaxes to change the … readingstar.co.kr