The correct answer for the given question above would be option B. Their role in the process of digestion is the absorption of nutrients. The small intestine is covered with finger-like projections which are known as villi. These villi help in absorbing the nutrients into the blood.
Answer:
Earth's atmosphere is roughly 78 percent nitrogen and 21 percent oxygen, with trace amounts of water, argon, carbon dioxide and other gases. Nowhere else in the solar system is there an atmosphere loaded with free oxygen, which is vital to one of the other unique features of Earth: life.
The correct answer is Polar climates.
The polar climate areas are featured by an absence of warm summers. Each month in a polar climate exhibit a mean temperature of fewer than 10 degrees Celcius. Even in their warmest months, they have a mean temperature of fewer than 10 degrees Celcius.
The countries coming under the polar climate regions are Alaska (United States), Yukon (Canada), Greenland (Denmark), Finland, Norway, Iceland, Sweden, and Russia.
I believe that sliding filament model of contraction states that; during contraction, the thin filaments slide past the thick filaments so that actin and myosin filaments overlap. According to this model the myosin or thick filaments of muscle fibers slide past the actin or thin filaments during muscle contraction, while the two groups of filaments remain at relatively constant length.
