Conservation of Energy:
As a projectile is launched into the air KE is at its maximum. As the projectile gains altitude PE becomes greater than KE. At the top of its arc, PE is at its maximum. The whole cycle reverses itself on the way down.
Then the model will become useless. originally the bottle should be air tight only tubes connected to the balloons, so that pressure can be shown when you adjust the plastic sheet in the bottom of the model. but now if there's a hole, air can move freely in or out the bottle and the model will not be able to show anything that occurs during respiration
The correct answer is As technological advancements are made, the cell theory may change.
The technological advancement can lead to new discoveries, which may or may not support the existing cell theory. There are many evidences present in the past, in which the technological advancement has proved the theory incorrect or needs to be modified. So, every theory can change over time due to the new discoveries and the researches.
<span>Anton van Leeuwenhoek, </span>who designed and built the first microscope, also discovered microbes such as protozoa and bacteria from a drop of pond water. He also viewed bacteria taken from his teeth scrapings. He was also the first to discovered blood cells and human sperm cells.
