Why does cyanide prevent active transport

Read the passage: canines may not be the deepest thinkers in the world. but perhaps that's for the best. the life of a dog—sitting alone all day, waiting for everyone to come home—can be pretty boring. super-smart animals would probably get totally stressed out, says university of pennsylvania researcher james serpell. look at it this way: if dogs were any smarter, they probably wouldn't choose to hang around with us. which best describes the tone of the passage?

What is rand's reason for including the ra. pe scene?   how does the event change both roark and dominique?   discuss how current attitudes on relations between the se. xes have changed since the publication of the fountainhead.

No copy and pasting will make brainiest