Answer: Despite over a century of research and development, currently high-speed maglev cars are only available in China and maglev transport systems are now operational in just three countries
Answer:
Well first you have to say which one you chose, but the hinged helps the snail stay connected to the ground, or solid objects and the thicker helps protect it against other creatures trying to harm it.
Explanation:
Im a genius
"<em>Ecosystem services are the benefits that people obtain from ecosystems. ... From the availability of adequate food and water, to disease regulation of vectors, pests, and pathogens, human health and well-being depends on these services and conditions from the natural environment.</em>" According to the World Health Organization
They get it from eating sugary foods and they need it for energy
Mucous membrane, membrane lining body cavities and canals that lead to the outside, chiefly the respiratory, digestive, and urogenital tracts. Mucous membranes line many tracts and structures of the body, including the mouth, nose, eyelids, trachea (windpipe) and lungs, stomach and intestines, and the ureters, urethra, and urinary bladder.
