Internal Stimuli in Animals

When an animal is thirsty, it responds by -

• eating food.
• blinking rapidly.
• sweating excessively.
• drinking water.

Which of the following is a response of the body when infected with a virus?

• decreased heart rate
• craving salty foods
• blood diverted to muscles
• increased body temperature

Stunted growth of a person can be caused by not meeting basic survival needs can be a response to-

• overexposure to sunlight
• lack of nutrients in diet
• eating a plant-based diet
• living in a hot climate

When an animal is infected with a virus, the body responds by creating conditions that are not favorable for the virus.  It does this by - 

• creating a sensation of hunger
• raising the core body temperature
• increasing sensitivity to sound
• inhibiting the sense of balance

Which is the best response when harmful bacteria enter the body?

• The endocrine system would filter out the bacteria.
• The digestive system would release more enzymes to digest the bacteria as food.
• The nervous system would signal the body to vomit or increase the body temperature.
• The respiratory system would reduce the exchange of gases to increase the level of carbon dioxide in the blood.