The number of H+ ions moving down the channel.
So id say the answer is C.
The question is incomplete it has options that are:
(Options for all tiles are reabsorption and secretion) Tiles- 1. Stella's urine sample shows the presence of proteins 2. Johns blood test report indicates a high toxin level 3. Miguel's blood test shows an increase in metabolic waste 4. Janice's urine report shows the presence of vital minerals
Answer:
The match of each situation is described below.
Explanation:
1. The presence of protein in Stella's urine is a indication of impaired filtration or insufficient absorption. The less reabsorption at proximal tubule causes the protein to remain in filtrate and excreting it in urine.
2. The high level of toxin in the blood test of Johns indicates that toxin are not secreted properly out of the body from kidney. Thus, less elimination of toxin increases its amount in blood.
3. The metabolic waste is excreted from the body through kidneys (excretory organ). The metabolic waste will be due to inadequate reabsorption. The kidney might fails to filter waste properly or waste gets reabsorbed can lead to its increase in Miguel's blood.
4. The maximum valuable substances for the body gets reabsorbed after filtration. This allows in retaining minerals in the body. The inadequate reabsorption can lead to release of vital minerals in Janice's urine.
Between 1962 and 1971, the United States Army Corps of Engineers (USACE) channeled the Kissimmee River and created a 30-foot deep, 300-foot wide, 56 mile long drainage canal (C-38). This project converted 44% of the floodplain to pasture, draining approximately 31,000 acres of wetlands. Before channelization, the River was a haven for wildlife, including at least 39 species of fish and 38 species of water birds.
Kissimmee River Restoration began in 1992 and has been the most successful ecosystem restoration initiative to date. By re-channelizing the River to replicate its natural paths, birds and other wildlife responded more quickly than anticipated and demonstrated the resiliency of nature. This success has been used all over the world to justify the value of ecosystem restoration. When Kissimmee River Restoration is completed in 2015, more than 40 square miles of the River-floodplain ecosystem will be restored, including almost 20,000 acres of wetlands and 44 miles of historic river channel.
D.) These features may aid in the plant's reproduction
<u>Plant reproduction is the process by which plants generate new individuals. The fact that the plants have developed blue flower petals and a place for bees to land is an example of the aiding in the plants reproduction. </u>