What's the difference between a tissue and organ

You notice a very one-dimensional-thinking snail crawling along one rail of a railroad track. naturally, you remove it to a safer place. but before you do, you observe it as it moves from position xi = -92.9 cm to position xf = -64.9 cm along the rail, as measured from a point where one rail abuts the next. what is the snail\'s displacement δx in centimeters?

True or false: the cycle of seasons on the earth is caused by the tilt of the earth on its axis toward and away from the sun.

According to newtons universal law of gravitation, which would change the parh of the ball so it traces out widest curved path possible?