Why do females have a menstrual cycle?

Why do females have a menstrual cycle? As a woman, your period is your body’s way of releasing tissue that it no longer needs. Every month, your body prepares for pregnancy. The lining of your uterus gets thicker as preparation for nurturing a fertilized egg. An egg is released and is ready to be fertilized […]

Do people live in the Queen Elizabeth Islands?

Do people live in the Queen Elizabeth Islands? With a population of less than 400, the islands are nearly uninhabited. There are only three permanently inhabited places in the islands. How many Queen Elizabeth Islands are there? The islands are divided into two major island groups: the Parry Islands and the Sverdrup Islands. The total […]

How does the complement system guard against microbes?

How does the complement system guard against microbes? Complement protects against infection in three ways. Firstly, it activates a large number of complement proteins that bind to pathogens so that they can be engulfed by phagocytes. Second, fragments of complement proteins can act as chemoattractants to recruit phagocytes. What line of defense is the complement […]

Can a helicopter survive engine failure?

Can a helicopter survive engine failure? In fact, you have a better chance at surviving in a helicopter when the engine fails than you do in an airplane. Helicopters are designed specifically to allow pilots to have a reasonable chance of landing them safely in the case where the engine stops working during flight, often […]

Why do hurricanes only hit America?

Why do hurricanes only hit America? “In the Atlantic region, hurricanes form anywhere from the tropical central Atlantic to the Gulf of Mexico. But to make it all the way to the U.S. West Coast, the storms have to traverse a long stretch of ocean water that is far too cold to sustain hurricanes. What […]

What are Huskies used for?

What are Huskies used for? The perfect sled dog! The Siberian Husky was used for centuries and centuries to pull the sleds of the Chukchi Tribe on the eastern Siberian peninsula. Huskies were also used for herding reindeer and guarding. What family does the husky belong to? Working Group Is Husky a good family dog? […]

How does fire affect nutrients availability in grassland?

How does fire affect nutrients availability in grassland? High severity fires increase the amount of nutrients mobilized and alter the hydrologic response of catchments. These combinations of factors make sites more susceptible to erosion of soil and release of nutrients into stream and lakes where they could potentially affect water quality. How are fires beneficial […]

How was buried in the Great Pyramid?

How was buried in the Great Pyramid? The pharaoh’s final resting place was usually within a subterranean burial chamber underneath the pyramid. Although the Great Pyramid has subterranean chambers, they were never completed, and Khufu’s sarcophagus rests in the King’s Chamber, where Napoleon is said to have sojourned, deep inside the Great Pyramid. Was the […]

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