In 1775 Jenner began to study the relationship between cowpox (a comparatively harmless disease) and the more dangerous and disfiguring smallpox. ... He hypothesized that exposure to cowpox rendered the body immune from smallpox. After nearly twenty years of experiments, he developed the first vaccine.
E=hv is an equation important when dealing with light. E refers to the energy of a photon; h is Planck's constant and v is the wavelength. According to this equation, light particles called photons travels in packets of energy. This is important in pv cells because this is the technology used to harness solar energy which is converted to electricity. The amount of energy should be estimated to know the appropriate material of construction of the pv cell to achieve optimum conditions. In this way, the pv cell could maximize the sun's energy.
Answer: Malignant tumor-
cancer cells are contained within their tissue.
Maglinant tumor-- Cells of this type of tumors have the potential to , escaping their tissue and spreading to other locations within the body.
Benign tumour-pre-cancerous cells highly disorganized metastasize.
Explanation: Tumor is an abnormal growth in the cell.
Benign tumor is a tumor that do not spread within the cell and are not cancerous. The can grow to very large and are removed by operation. It can be very dangerous when its big and press other tissues especially when located in the brain. It may not require any treatment when it is not threatening. Example of benign is fibroid
Malignant tumour are tumour that are cancerous and can spread to other tissues. They can be transported via the blood stream to other tissues. Malignant tumour grows fast and can spread to nearby tissues example is breast cancer when not diagonize earlier can spread to other tissues. They required medical attention and can be removed through operation, some require chemotheraphy. Some malignant tumour grows back even after removal.
