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.