Answer:
The correct answer is a black-tailed prairie dog.
Explanation:
Lewis and Clark made their first reports of the flora and fauna they discovered along the Missouri River between 1804 and 1806. They also documented their observations of the Rocky Mountains and the Pacific Northwest. Lewis and Clark gave descriptions of at least 178 plants and 122 animals. Among these was the black-tailed prairie dog which the explorers described as a "barking squirrel." The explorers sent this specimen to President Jefferson to show some concrete evidence of their discoveries.
Ava is able to do this because of an improvement in selective attention. This is a mechanism to focus on a specific thing in the environment though certain amount of time.
Functionalist psychologists focus on the function of behavior and <span>the operation of the whole mind rather than the individual parts
functionalist psychologist study what affect human's behavior to act the way they act in our everyday routine. It focused on how the society where we live influence our average behavior as a whole</span>

Radium ( a radioactive element having atomic number 88 ) was discovered by Marie Sklodowska Curie in year 1898.