... on top of its head called a blowhole. The blowhole is sealed wile underwater by a series of powerful muscles. They have torpedo-shaped bodies, which enable the animals to move through the water quickly and easily. There skin is rubbery and smooth. They have a layer of fat beneath there skin which keeps the dolphin warm and stores food. It is also think that the blubber helps them to stay afloat, since it as lighter then water. have distant cautious that make them direct the other whales, most dolphin species have a distinct beck where as porpoises have a more rounded shape to there head. They also have a hooked- ...

... move toward opposite poles. The last phase of mitosis is telophase. Here the daughter chromosomes arrive at the poles and the microtubules disappear. The cytoplasm divides, cell membrane closes inward making two daughter cells. This is a very complex process which needs to be completed perfectly, in order for the cell to divide and replicate normally. Very often a cell loses its regulation, and begins replicating out of control, that is it becomes cancerous. Abnormal cell growth is often known as cancer. During which, cancer cells do not respond normally to the body's control mechanisms. They often divide excessiv ...

... with Fetal Alcohol Effects. Those diagnosed with FAS have prenatal and postnatal birth deficits, central nervous system dysfunction, specific facial characteristics, and body malformation problems. Children who display only some of these effects are claimed to have FAE, or fetal alcohol effects. The sad thing is that most infants and children who suffer from fetal alcohol effects go unnoticed. They are looked upon as having behavioral problems. Because of this lack of recognition the treatment of their problems are mishandled which creates a very difficult and confusing childhood for these children. (McCreight ...

... The Big Bang was the start of time and space. The matter and radiation of that early stage rapidly expanded and cooled. Several million years later, it condensed into galaxies. The universe has continued to expand, and the galaxies have continued moving away from each other ever since. Today the universe is still expanding, as astronomers have observed. The Steady State model says that the universe does not evolve or change in time. There was no beginning in the past, nor will there be change in the future. This model assumes the perfect cosmological principle. This principle says that the universe is the ...

... uterus. The egg is now called a blastocyst. The time that this takes is often measured after the last menstrual period(LMP). The time is also measured in trimesters, three month intervals. After about thirty hours the cell divides for the first time. It is continuously moving towards the uterus where it will call home for the next nine months. After about two days it has divided to having about eight cells. After four days it is in the uterus and has to "land" somewhere and attach itself to the endometrium. The eighth day is when implantation occurs. The fertilized egg then implants itself on th ...

... engineering has grown and become more common. People with diseases, infertile men, and farmers especially should recognize the many benefits from genetic engineering. They could end up with a cure a lot faster and find easier ways of getting treatment to healthier foods. From this kind of example, genetic engineering should be a known and accepted practice. It is a safe way to create good quality foods, create new lives, and cure diseases. In May of 1994, the Food and Drug Administration approved a genetically engineered tomato called “Flavr Savr�. Many people cringe at the thought of eating them. Th ...

... for important activity. Inside the Apollo 4 there was a metal door with a sharp edge. Each time the door was open and shut, it scraped against an environmental control unit wire. The repeated abrasion had exposed two tiny sections of wire. A spark alone would not cause a fire, but just below the cuts in the cable was a length of aluminum tubing, which took a ninety-degree turn. There were hundreds of these turns in the whole capsule. The aluminum tubing carried a glycol cooling fluid, which is not flammable, but when exposed to air it turns to flammable fumes. The capsule was filled with pure oxygen in an effor ...

... who talks first, how long they talk, and how to end a conversation. A protocol addresses these and more. The common protocol is Transmission Control Protocol (TCP/IP). TCP/IP is the protocol of the Internet. Internet is actually the short form of the word Internet work. Internet work means a network of networks. At one time, all of the different networks used different protocols. A user could talk to others on their network, but not to someone on a different network. The protocol TCP/IP solves this problem. It is what allows a person on one network to communicate with a person on a different network. When I ...

... most common and is also called classic hemophilia. Hemophilia B or Christmas disease, named after the first patient diagnosed and treated with hemophilia B. Hemophilia B lacks AHF (antihemophilic factor). About 85% of hemophiliacs have classic or hemophilia A. Hemophilia A's blood lacks the clotting factor eight. The rest of the 85% have Christmas, which lacks clotting factor nine. An extremely small number of hemophiliacs lack yet another kind of clotting factor. Both A and B forms have also been called the royal disease. Hemophilia was inherited by decedents of England's Queen Victoria and introduced into th ...

... the DNA ladder. All DNA molecules consist of a linked series of units called nucleotides. Each DNA nucleotide is composed of three subunits: a special sugar called deoxyribose, a phosphate group that is joined to one end of the sugar molecule, and one of several different nitrogenous bases linked to the opposite end of the deoxyribose. DNA has two specific functions: to provide foe protein synthesis, and hence the growth and development of the organism and to furnish all descendants with protein-synthesis and hence the growth and development of the organism. So all living things on plant Earth contains the genetic ...