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).
One of the most common complaints associated with aging and the natural loss of collagen in the skin is the appearance of wrinkles and fine lines. Exposure to the sun, pollution, poor health choices, and aging can all cause collagen levels to decrease in the skin. One of the main components in your skin is collagen, and it is mainly found in the dermis. The dermis is the bottom layer of your skin, and it is responsible for maintain elasticity.