They are undergoing mitosis 2^7=128 but they started with 4 cells not two cells so it’s 2^6 which means 6 generations... tell me if turns out to be right
<em>Answer:</em>
<em>The answer for this statement is "True".</em>
<em>Explanation:</em>
<em>In the kidneys, the countercurrent mechanism involves the interaction between the flow of filtrate through the loop of Henle of the juxtamedullary nephrons (the countercurrent multiplier) and the flow of blood through the limbs of adjacent blood vessels (the countercurrent exchanger). This relationship establishes and maintains an osmotic gradient extending from the cortex through the depths of the medulla that allows the kidneys to vary urine concentration dramatically which is true.</em>
Answer: prokaryotes (single celled micro-organisms/microbes)
Explanation: The first living things on Earth, single-celled micro-organisms or microbes lacking a cell nucleus or cell membrane known as prokaryotes, seem to have first appeared on Earth almost four billion years ago, just a few hundred million years after the formation of the Earth itself.