Answer:
Dependent variable
Explanation:
The dependent variable in an experiment is the variable that the experimenter measures in an experiment. The dependent variable responds to changes made to the independent variable.
In this case, the pH of a stream is being measured at varying distances. If one is to measure the pH of the part of water above the factory, the pH being measured represents the DEPENDENT VARIABLE in the experiment.
You should only test one variable/factor in a science experiment.
A.) Gymnosperms are the first seed plants.
Answer:
The correct answers is: I would predict that animals with longer loops of Henle would be able to concentrate their urine more than animals with shorter loops, and thus they would more likely survive in desserts and other dry areas.
Explanation:
The<em> Loop of Henle</em> is a tubule system that connects the proximal convoluted tubule to the distal convoluted tubule in a nephron, the functional and structural unit of the kidney. Its primary job is to establish a concentration gradient in the kidney's medulla by creating a high urea concentration deep in the medulla using a countercurrent multiplier system that uses electrolyte pumps. Through this mechanism, <u><em>water is reabsorbed to concentrate the urine and impede dehydration</em></u>.
The length of the loops of Henle is of great importance for the countercurrent multiplier system - <u>the longer they are, the more concentrated the urine can get</u>. Therefore, animals with longer loops can survive better in habitats where there is not much water around.
