4. Number the organisms from 1 (most abundant) to 8 (least abundant) __5__ Mammals __2_ Molluscs _4_ Roundworms __1_ Arthropods __3_ Flatworms. 5. What is biodiversity (click on the purple links for definitions): ____ The many different types of organisms that exist.
Factors that Decrease BUN. 1  Low-protein diet, malnutrition or starvation (R). 2  Impaired liver activity due to liver disease (R). 3  Genetic deficiency of urea cycle enzymes (R). 4  Higher IGF-1 and growth hormone. 5  Anabolic steroids, which decreases protein breakdown. 6  Overhydration, or drinking a lot of water. 7  Pregnancy (due to increased plasma volume) (R).
The ratio of BUN to creatinine is usually between 10:1 and 20:1. An increased ratio may be due to a condition that causes a decrease in the flow of blood to the kidneys, such as congestive heart failure or dehydration. It may also be seen with increased protein, from gastrointestinal bleeding, or increased protein in the diet.