... can grow up among their alien nestmates with no risk of being rejected by their foster parents. MASTERS OF DISGUISE Things aren't always as they seem, and nowhere is this more true than in nature, where dozens of animals (and plants) spend their time masquerading as others. So clever are their disguises that you've probably never known you were being fooled by spiders impersonating ants, squirrels that look like shrews, worms copying sea anemones, and roaches imitating ladybugs. There are even animals that look like themselves, which can also be a form of impersonation. The phenomenon of mimicry, as it's called by biologists, was first noted in the m ...

... is the retrieval of information, which is stored in memory. The act of remembering takes place when a correct response is given to a certain stimuli presented. Forgetting is a weakening of this stimulus- response relationship. The Purpose of this experiment is to determine what type of stimulus information is more easily remembered, be it in randomized manner or meaningful. When are more errors made in remembering the stimuli, among these two types of stimuli used (CVC). Also, when a correct response is given, which was the type of stimuli (CVC) that caused this to occur. The design of this experiment on verbal learning has both within- su ...

... tiger, and the Southwest Chinese tiger are now extinct doesn't give you aportrait of the process of extinction. The Javan tiger became extinct in the 1970's in a set aside special national park under full protection. Politicans and bureaucrats seem to be obsessed with numbers and not trends. Let me illustrate this with tigers. There are frequently requests as to the exact number of tigers, or a tiger subspecies left in the world. That tells you that there are people that care. But there are so little tigers left that we can not even keep track of them. We should look at the trend that the population is taking, rather than the number as a slice in time. Ju ...

... fact that the population continues to rise. What this translates to in correlating statistics is that energy demands throughout the past half century have tripled, the global economy has quintupled and the world population increased twofold (Anonymous em_txt4.html). Richard Cromwell, general manager of SunLine Transit Agency in Southern California's Coachella Valley, is a firsthand proponent of alternative fueling. Having to smell the awful odor emitted day after day from his fleet of forty-seven buses, Cromwell (Silverstein 10) encourages the changeover. Phil Bostley, Mayor of Indian Wells, a subsection of Coachella Valley, agrees wholeheartedly by saying pet ...

... animals and occasional fires. Producer: An autotroph organism (grass). Consumer: Organism that eats producers (caterpillars, bison). Primary consumer: Organisms that eat consumers (chicken, meadowlark). Secondary consumers: Organisms that eatprimary consumers (praire felcon, eagle). Decomposers: Organisms that uses nutrients from dead plants and animals, it starts the chain over (bacteria). Say that an organism was removed from the web, such as a caterpillar. Though it's not the only grass eating organism it would still mess up the web. Say you put the bison in its place, that part would work, except for the fact that the indigo bunting wouldn't eat the bis ...

... or abrasion on the skin, such as when handling contaminated wool, hides, leather or hair products (especially goat hair) of the infected animal. A skin infection begins as a raised itchy bump that resembles an insect bite, but within one to two days it develops into a vesicle and then a painless ulcer, usually one to three centimeters in diameter with a black necrotic (dying) area in the center of the ulcer. Lymph glands in the adjacent area may swell. About twenty percent of untreated cases of cutaneous anthrax will result in death (www.cdc.gov). Deaths are rare due to antimicrobial therapy. When anthrax is contracted by inhalation the initial symptoms resemble ...

... than dust. The earth was far bigger than it is now and probably weighed 500 times as much. The large body of dust and gas forming the sun collapsed rapidly to a much smaller size. The pressure that resulted from the collapse caused the sun to become very hot and to glow brightly. The newly born sun began to heat up the swirling eddy of gas and dust that was to become the earth. The gas expanded, and some of it flowed away into space. The dust that remained behind then collected together because of gravity. Although the shrinking earth generated a lot of heat, most of this heat was lost into space. Therefore, the original earth was most likely solid, not molt ...

... small. Technetium has been found in the spectrum of S-, M-, and N-type stars, and its resence in stellar matter is leading to new theories of the production of heavy elements in the stars. Nineteen isotopes of technetium, with atomic masses ranging from 90 to 108, are known. 97Tc has a half-life of 2.6 x 10^6 years. 98Tc has a half-life of 4.2 x 10^6 years. The isomeric isotope 95mTc, with a half-life of 61 days, is useful for tracer work, as it produces energetic gamma rays. Technetium metal has been produced in kilogram quantities. The metal was first prepared by passing hydrogen gas at 1100C over Tc2S7. It is now conveniently prepared by the reduction of ammoni ...

... law of the properties of the chemical elements (which states that elements show a regular pattern when they are arranged according to their atomic masses). Mendeleyev wrote a two-volume book called Principles of chemistry (1868-1870), which later became a classic. These books included an improved version of the periodic table. Sir Joseph Thomson, another important person in the development of the atomic theory, was born in 1906. Thomson won the Nobel Prize in physics (1906) for his work in the conduction of electricty through gases. He discovered the electron by using cathode rays. An electron is the smallest particle of an atom, the charge on a ...

... from many things such as atoms and subatomic particles; an atom is a tiny bit of matter that has very little weight. They are much too light to be weighed directly, but scientists have developed methods of determining these tiny weightd by using special labratory instruments. Hydrogen is the lightest of all atoms and carbon atoms weigh twelve times more than the hydrogen atom. Atoms that make up one alement are not like atoms that make up another element. These (atoms) are not simple particles, their structure is very complexe. They are, in fact, made up of smaller bits of matter called subatomic particles. An atom has two parts. Those two parts are; 1)at ...