8. How do the kidneys ensure the blood remains within an acceptable pH range? A Eliminating waste products from metabolizing proteins
B. Regulating hormones to control electrolytes
C. Modifying the water level
D. Modifying the acid/base balance

Where is having brightly colored feathers that attract mates most clearly an adaptation for a bird? a. a forest with dense vegetation b. a sandy beach beside an ocean c. a snowy tundra with little vegetation d. a swamp with many hawks that eat birds

The krebs cycle is also known as the calvin cycle pyruvic acid cycle carbon - oxygen cycle citric acid cycle

What are the two functions of the respiratory system