The correct option is D. This is because, mucus, inflammation and fever perform different functions in the immune system.The mucus membrane produces mucus which traps microbes. Inflammation refers to a localized tissue response which occurs when a tissue is damaged. Fever inhibits bacterial growth and speed up the rate of healing of a damaged tissue.
Your answer would be to stop gaining weight. Hope this helps.
Its a temperate grassland. You can't mess it.
Dr. Ray uses a model because the scale model is used to test the design to see if it’s effective, instead of testing it on the real wetland and risk harming it through his experiment. By testing on a model first he can take notes on the effectiveness of his device and improve it, rather than running the risks that come with testing his design on something that he can’t undo if his design doesn’t work the first time.
Hope this helps!
