Who believed that we have no reason to postulate the existence of any external physical reality, and that all that exists are the mental sensations and ideas that we experience and the minds in which we experience them?

John Locke

Explanation:

John Locke was a British philosopher, who was born in 1632 and died in 1704.

He believes that “all ideas come from sensation and reflection” and that all knowledge is founded on experience and argues that the human mind doesn't have innate, intuitive ideas, but much rather humans are born with reasoning.

This is different from other scientists that believed in dualism.

In conclusion, John Locke claimed that the mind is in a blank state at birth and believed that knowledge is gained through experience.

both the house and senate must approve the conference report.   after it is approved by both on an identical from, it will be sent to the president.   if the president approves it, it will become law.

d. i assume the underlined word is "role." reformat if it isn't.

explanation:

role is closest to part because when replacing words, "playing a vital decision," "playing a vital activity," and "playing a vital dollar" don't make logical sense. the only meaningful choice is "playing a vital part."

this fits one of merriam-webster's definitions of role: "a function or part performed especially in a particular operation or process."