The nictitating membrane's function is to provide the eye with a special extra level of safety while the creature is still able to see.
Answer:
The four levels of protein structure are distinguished from one another by the degree of complexity in the polypeptide chain. A single protein molecule may contain one or more of the protein structure types: primary, secondary, tertiary, and quaternary structure.
Explanation:
Answer:
Bacteria and fungi decay convert the dead remains of plants or animals or their waste products to ammonia (NH3). Nitrification: The ammonia is converted to nitrites and then to nitrates by nitrifying bacteria. Some of the nitrate formed in the soil is absorbed and assimilated by the plants.
Explanation:
The gallbladder lies beneath the liver
