Stimuli

any change in an organism’s environment that

causes a response is ................................

• Photosynthesis

• cellular respiration

• Stimuli

• Tropism

External stimuli is

• change outside plant

• change inside plant

• Type of photosynthesis

• Type of cellular respiration

any change inside plant is

• External stimuli

• Stimuli

• Transpiration

• Internal stimuli

Example for of external stimuli is

• Hormones

• Light

• feeling hot

• feeling hungry

Which is central nervous system

• muscle and gland

• brain and spinal cord

• spinal nerve and cranial nerve

• nose and mouth

Which of the following is a response to smelling food?

• Excessive sweating

• Rapid blinking

• Increased hunger

• Sensitivity to sound

Pain is a stimulus in animals that leads to responses which help the animal to -

• find food in the habitat.

• recuperate after exercise.

• avoid harmful situations.

• fight serious infections.

While sitting in a room, a person notices that the temperature has become uncomfortably warm. The body will respond by -

• shivering.

• sweating.

• twitching.

• vomiting.

Which of the following is a likely cause of vomiting?

• Ingesting spoiled food

• Cold temperatures

• Lack of water

• Excessive sunlight

Which of the following is an example of an external Stimuli?

• Becoming dehydrated and then taking a drink of water
• Getting a headache and then taking Excedrin
• Having hunger pains and then eating a sandwich
• Smelling Pizza and then eating a piece