A

Use the image to answer the question.

Wildtype

100-

Mutant

False

0

1

5

1

5

Correct

Trial

The acquisition of memories can be demonstrated in rodents on a T-maze task, in this task, a food reward is placed in one of two arms of a T. Over many triais, a rodent is required to learn which arm contains the reward in an experiment to determine whether the gene Homertav is involved in memory, a mouse was trained on a 7-maze. The results over live thais of training are shown.

a. This task tests both innate and leamed behaviors Describe the innate behavior tested by this task. Explain now innate benaviors contribute to the survival of a species, b. A scientist reviewing this experiment notes that insufficient controis were performed to determine whether mutations in Homeriav affects the function of physiological systems outside of the nervous system. Identify a physiological system outside of the nervous system that contributes to the performance of this task. Explain how the function of this system contributes to the task c. Describe how the consumption of food by the rodent contributes to homeostasis in this organism Explain now this provides selective pressure on the evolution of this species.

(12 points)

a. The innate behavior tested by this task is the rodent's natural ability to navigate and explore its environment. This innate behavior contributes to the survival of the species by allowing the rodent to search for food, escape predators, and find suitable shelter. By testing this innate behavior, researchers can determine the extent to which learning plays a role in the acquisition of memories.

b. One physiological system outside of the nervous system that contributes to the performance of this task is the digestive system. The function of the digestive system is crucial as it processes the food reward consumed by the rodent, providing the necessary energy for the rodent to perform the task successfully. Any mutations in Homeriav that affect the function of the digestive system could impact the rodent's ability to extract nutrients from the food reward and ultimately affect its performance on the task.

c. The consumption of food by the rodent contributes to homeostasis by providing essential nutrients and energy for the organism's survival. This nutrient intake helps regulate the rodent's internal environment, ensuring that vital processes such as metabolism, growth, and repair can occur effectively. The need to consume food to maintain homeostasis puts selective pressure on the evolution of the species, as individuals that can efficiently find and consume food are more likely to survive and reproduce, passing on their genes to the next generation. Over time, this can lead to adaptations that improve the species' ability to acquire and process food efficiently.