Complete the table comparing digestive systems of herbivores, carnivores, and omnivores: Feature Tooth type Digestive tract length Stomach structure Herbivores Carnivores Omnivores

Here are control and preventive measures for three diseases:

• Malaria: Control and preventive measures include using insecticide-treated bed nets, indoor residual spraying, eliminating mosquito breeding sites, and taking antimalarial chemoprophylaxis. Early diagnosis and prompt treatment are also crucial.
• Cholera: Prevention focuses on ensuring access to safe drinking water, practicing proper sanitation and hygiene, and safe food preparation. Oral cholera vaccines are available, and prompt oral rehydration therapy is vital for treatment.
• COVID-19: Key preventive measures involve vaccination, wearing face masks, maintaining physical distancing, and frequent hand hygiene. Good indoor ventilation and testing with isolation of cases are also important for control.