Michelle's Biology (:

Describe the structure of the urinary system, including kidneys, ureters, bladder and urethra We have two kidneys , each with it's o...

Understand how the kidney carries out its roles of excretion and of osmoregulation Kidneys carried out the excretion of molecules called...

Recall that the lungs, kidneys and skins are organ of excretion 1. Lung x 2- release metabolic waste CO2 (carbon dioxide) 2. Kidney ...

Recall the origin of carbon dioxide and oxygen as waste products of metabolism and their loss from the stomata of a lead 1. The proces...

Understand the roles of oestrogen and progesterone in the menstrual cycle Oestrogen and progesterone are both hormones , which is produc...

Understand that the incidence of mutations can be increased by exposure to ionizing radiation (for example gamma rays, X-rays and ultravio...

Understand how resistance to antibiotics can increase in bacterial populations Case Study: Bacteria Staphylococcus aureus can cause sk...