Answer:
It adapted and became resistant to penicillin
Answer:
separation of populations has led to the evolution of new species
Explanation:
- When the populations evolve to become distinct species, then this process is termed as speciation.
- Speciation can occur due to various reasons and one of these reasons is geographic isolation that leads to separation fo the populations which then faces different evolutionary pressure and thus evolve into new species.
- In the Hawaiin islands, there are different species of honeycreepers because of the unique geology of Hawaii due to which new volcanic islands are constantly being formed and eroded which leads to the separation of population and their evolution into new species.
Answer: C). A biozone can help trace the path of evolution over time.
Biozone is a stratigraphic unit which contains fossils in layers of strata existed in a particular geologic period. It is named as biozone because it depicts the number of biological taxa existed in particular strata. Therefore, the variation in features within taxonomic groups in biozones can give indication of evolution with respect to time.
Answer:
Magnesium hydroxide Mg(OH)₂ is the formula for the antacid. Commonly known as milk of magnesia.
This antacid should be taken at bed time or one hour after meal. Once a day.
The routine medication should have at-least one hour gap with the antacid.
If sally develops diarrhea then the antacid should be discontinued.
Lifestyle changes that could help Sally's bowel and gastric conditions are:
- High fiber diet.
- Increased Water intake.
- Regular exercise.
- Less spicy died.
- Taking meals at-least 3 hours before bed time.
- Wearing loose fitting comfortable clothes.
Explanation:
- following the symptoms it is assumable that Sally is suffering from GERD (Gastroesophageal reflux disease) which has resulted in constipation.
- GERD is a condition when the stomach acid of a person moves into the esophagus due to incomplete closure of the lower esophageal sphincter .
- Reflux of the stomach acid results in heart burn.
- The best way to relieve this condition is to take an antacid having a bicarbonate, or hydroxide formula which will react with the stomach acid and neutralize it or a proton pump inhibitor which would check the production of stomach acids.
- In Sally's case GERD is accompanied with constipation so she needs a antacid as well as laxative which will ease the bowel movement.
- A proton pump inhibitor will not be a good choice because it might aggravate the constipation thus Milk of magnesia or any other antacid with magnesium hydroxide with a chief component should be prescribed.
- Magnesium hydroxide is a laxative that acts as a mild antacid.
- Milk of magnesia has been reported of having diarrhea as a side effect, so the medication should be discontinued if Sally suffers diarrhea after taking the medication.
- GERD is best treated with lifestyle changes that include high roughage in diet, water intake, and physical exercise. These prevent the built up of acid in stomach and maintain the intestinal peristalsis thus regularizing the bowel movement and relieving acid acccumulation.
Answer:
C
Explanation:
pyruvate dehydrogenase is the enzyme which catalysis pyruvate to acetyl Co -A. Thus,it ensures the formation of link reaction/ bridge reaction for linking glycolysis with Citric acid cycle. Therefore, inhibition of this enzyme, prevent link reaction, and there reduction in pyruvate utilization and therefore prevent the commencements of Citric acid cycle, with consequent reduction in glucose oxidation. as there is no reaction of acetyl Co A (from link reaction from pyruvate ) with 4C oxaloacatate in the kreb Cycle to form Citrate in Kreb's cycle. Thus the heart depends on fatty acid supply for energy.
