Answer:
Skin is the human body's largest organ.
Explanation:
Body organs aren't all internal like the brain or the heart. There's one we wear on the outside. Skin is our largest organ—adults carry some 8 pounds (3.6 kilograms) and 22 square feet (2 square meters) of it.
Answer:
Nonpoint-source pollution is the opposite of point-source pollution, with pollutants released in a wide area. As an example, picture a city street during a thunderstorm. As rainwater flows over asphalt, it washes away drops of oil that leaked from car engines, particles of tire rubber, dog waste, and trash. The runoff goes into a storm sewer and ends up in a nearby river. Runoff is a major cause of nonpoint-source pollution. It is a big problem in cities because of all the hard surfaces, including streets and roofs. The amount of pollutants washed from a single city block might be small, but when you add up the miles and miles of pavement in a big city you get a big problem.
In rural areas, runoff can wash sediment from the roads in a logged-over forest tract. It can also carry acid from abandoned mines and flush pesticides and fertilizer from farm fields. All of this pollution is likely to wind up in streams, rivers, and lakes.
Airborne pollutants are major contributors to acid rain. It forms in the atmosphere when sulfur dioxide and nitrogen oxides combine with water. Because acid rain results from the long-range movement of those pollutants from many factories and power plants, it is considered nonpoint-source pollution.
Explanation:
The statement that when consumed together, grains and legumes are good complementing protein sources is true.<span>
</span><span>Legumes are plants that include beans, lentils, peas and peanuts, while grains are </span><span>wheat, oats, corn, rice..</span><span>
They are less expensive than meat, poultry and fish.
</span>When eaten together provide a complete protein essential for health.
Answer:
The correct answer is b) "All of the above".
Explanation:
Nowadays it is known that the lipid bilayer of the cells is not static, actually, the modern Fluid-Mosaic membrane model establishes that the lipids move constantly within the lipid bilayer. The lipids are able to rotate within its axis, the lipids are able to movement laterally moving from one site to the other within the same plane, and also can move from a plane to the other plane in what is known as transverse "flip flop" movement.
Pathogenic protozoa comprise a large number of eukaryotic microorganisms which are the causative agent of important parasitic diseases. Some affect human and are of high medical relevance as malaria, toxoplasmosis, leishmaniasis, the Chagas disease, sleepiness disease, amebiasis, giardiasis, and trichomoniasis.
