How does globalization affect air pollution in China? Choking – and dying – on globalization China’s export-oriented industrial spasm, powered largely by burning coal, has bequeathed it notoriously lethal air pollution, so much so that, according to one study, it contributes to the deaths of 1.6 million people per year (4,400 per day), or 17% […]

What are the little finger-like projections in the small intestine? Intestinal villi (singular: villus) are small, finger-like projections that extend into the lumen of the small intestine. Each villus is approximately 0.5–1.6 mm in length (in humans), and has many microvilli projecting from the enterocytes of its epithelium which collectively form the striated or brush […]

How does a shell protect a snail? It is an external skeleton or exoskeleton, which serves not only for muscle attachment, but also for protection from predators and from mechanical damage. In land snails the shell is an essential protection against the sun, and against drying out. Why do tortoises have shells? This is important […]

What happens if you leave the Decolorizer in a Gram stain? The decolorizer should stay on the slide for no more than 15 seconds! If the decolorizer is left on too long, even gram positive cells will lose the crystal violet and will stain red. What color are Gram negative bacteria after the decolorizing step? […]

How a change in DNA can affect the phenotype by altering the sequence of amino acids in a protein? Changing the sequence of DNA can change the amino acids that make up the protein. This could have huge consequences. Enzymes are made of proteins. They have a specifically shaped active site that recognises a certain […]

What type of fault is shown in the image? The image shows a normal fault which happens when the hanging wall moves downward from the footwall, and this type of faults occur when two blocks of rock are pulled away from eachother, and in that case on of the walls becomes the hanger, which means […]

How far is Pluto from the sun in AU? 39.5 astronomical units What is the distance from the Sun at perihelion and aphelion? miles At what distance is Pluto from the sun when it is at aphelion? 49 AU How do you calculate orbital period with perihelion and aphelion? What is it’s orbital period? The […]

How does the body breakdown glucose? When the stomach digests food, the carbohydrate (sugars and starches) in the food breaks down into another type of sugar, called glucose. The stomach and small intestines absorb the glucose and then release it into the bloodstream. What nutrient breaks down into glucose? The body uses three main nutrients […]

Can include connections between a wide range of biological cognitive and socioemotional processes? The Developmental Cascade model focuses on connections between a wide range of biological, cognitive, and socioemotional processes and often includes social contexts as well. Which emotion can be seen expressed by infants during their first six months of life? The ability of […]

Which body did the National Park Service Organic Act establish? The Organic Act established the National Park Service as an agency under the direction of the Secretary of the Interior with the stated purpose of promoting use of national park lands while protecting them from impairment. What department is the NPS under? Department of the […]