The descending limb of the loop of henle a. is freely permeable to sodium and urea b. is not permeable to water c. pulls water by osmosis into the lumen of the tubule d. contains fluid that becomes more concentrated as it moves down into the medulla

Ais a landform that is formed at the mouth of a river from the deposition of sediment carried by the river as the water flows.

In a cross between individuals of a species of tropical fish, all of the male offspring have long tail fins, and none of the females possess the trait. mating two of the f1 fish fails to produce females with the trait. explain the inheritance pattern of the trait.

Do you think the gene eef1 alpha1 supports cell theory? explain your response.