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WorksheetsExternal Internal Stimulus Response
Total questions: 15
Worksheet time: 8mins
Which of the following is an example of response to an internal stimulus?
A . Having hunger pains and then getting a sandwich to eat
B. Watching television commercial about chips and then getting a bag of chips to snack on
C. Smelling cookies as they bake and then eating the warm cookies form the oven
D. Seeing a cake on the kitchen table and then sneaking a slice of the cake
A person becomes ill because they contracted an infection. The person's body starts to run a fever. What may be an internal response by this person's body to control its body temperature?
A . Sweating from pores
B. Covering up
C. Getting in an ice bath
D. Taking aspirin
As the season turns from fall to winter, what is the most likely response that a wolf’s body has to the
changing season?
A.The wolf stores more fat to maintain body heat and provide nutrition when there may be less prey.
B.The wolf produces less fur and sheds more fur to help the wolf move quickly to find shelter in the
cold.
C. The wolf produces more melanin causing the fur to be darker so that the pack can see other
individuals easily.
D.The wolf runs more and eats less food to maintain less body mass to keep warm throughout the
winter.
A dog runs around outside in the heat. How will the dog most likely respond to the hot environment?
A . The dog will start to pant.
B. The dog's hair will stand straight up
C. The dog's skin will grow goosebumps.
D. The dog will begin to shiver.
When a coyote sees a deer in the woods and begins to run towards it, the deer takes off running.
Which statement explains the deer’s response to the coyote?
A. The deer is reacting to internal stimuli.
B.The deer is in fight or flight mode.
C.The deer is experiencing phototropism.
D.The deer is experiencing geotropism.
A student investigates how fear affects the fight-or-flight response by observing her friend as he watches a scary movie. Which best predicts how the friend will respond to fear?
A . His heart rate will increase and his pupils will dilate.
B. His heart rate will decrease and his pupils will dilate.
C. His heart rate will increase and his pupils will constrict.
D. His heart rate will decrease and his pupils will constrict.
An animal that usually inactive is forced to move when its environment is destroyed by deforestation. How might the animal's body maintain balance with this increase in activity?
The animal's body will require more energy to match the increase in activity, and its metabolism will increase.
The animal's body will require more energy to match the increase in activity, and its metabolism will decrease.
The animal's body will require less energy to match the increase in activity, and its metabolism will decrease
The animal's body will require less energy to match the increase in activity, and its metabolism will increase.
If a person feels pressure on her bladder, then she is experiencing —
A . an internal stimulus to release waste.
B. an external stimulus to stop drinking.
C. an internal stimulus to drink more water.
D. an external stimulus to release excess water
What is a response of an organism when the temperature drops?
A . Shivering, where muscles contract and expand quickly and the body temperature rises
B. Salivating, which lets go of extra liquid in the body releasing energy as heat
C. Sweating, which pulls moisture to the surface to trap heat close to the skin
D. Panting, which exchanges cold air for warm air in the body raising the temperature
An animal that usually inactive is forced to move when its environment is destroyed by deforestation. How might the animal's body maintain balance with this increase in activity?
A. The animal's body will require more energy to match the increase in activity, and its metabolism will increase.
B. The animal's body will require more energy to match the increase in activity, and its metabolism will decrease.
C. The animal's body will require less energy to match the increase in activity, and its metabolism will decrease
D. The animal's body will require less energy to match the increase in activity, and its metabolism will increase.
Which of the following is an example of response to an internal stimulus?
A . Having hunger pains and then getting a sandwich to eat
B. Watching television commercial about chips and then getting a bag of chips to snack on
C. Smelling cookies as they bake and then eating the warm cookies form the oven
D. Seeing a cake on the kitchen table and then sneaking a slice of the cake
A person becomes ill because they contracted an infection. The person's body starts to run a fever. What may be an internal response by this person's body to control its body
A . Sweating from pores
B. Covering up
C. Getting in an ice bath
D. Taking asprin
A student places a plant in a dark room next to growth lamp, while providing sufficient water and nutrients to ensure the plant's growth and survival. The plant will likely respond-
bending towards the lamp
wilting and eventually dying
shedding all of its leave
increasing its rate of photosynthesis
When a plant wilts due to lack of water, it is responding to which of the following internal stimuli?
decreased water pressure within the plant cells
lack of nutrients carried by water in the plant
decreased rate of photosynthesis in the stem
increased storage of glucose in the leaves
Many birds migrate long distances when the seasons change. Which of the following is an environmental stimulus that would signal to the birds the changing seasons?
changes in the length of daylight
increase in the population of edible plants
decreased number of offspring per hatching event
increase in annual precipitation levels
