# Science Homework Help

### Showing All Questions Answered Popular Recommended Unanswered Editor's Choice in Science

• Science
Kelvin and Celsius are two different systems of measuring temperature. In Celsius system, temperature at which water freezes is taken as 0 degree temperature which water boils is taken as 100...

Asked by mikebav53 on via web

• Science
A heterotroph is an organism that uses carbon for growth. That is their primary food source. They obtain their carbon from other heterotrophs and autotrophs. "Heterotrophs are consumers in the food...

Asked by jessie01 on via web

• Science
A tomato is definitely a fruit if you are talking about the actual scientific meaning of the word. Something is a fruit if, among other things, it has the seeds of the plant within it. Since the...

Asked by dulcelove on via web

• Science
I assume you are asking about our sun and that you are asking how long it will last before it in some way "dies" at some point in the future. Scientists believe that the sun has been around for...

Asked by steven101 on via web

• Science
It is hard to find a direct diagram for what you are asking. However, there are some sites that can help you to establish a time line or diagram based on the information on the sites. I have...

Asked by sfstudent on via web

• Science
The Petri dish was invented by and is named after Julius Richard Petri, in 1877. A petri dish is a round, shallow, plastic or glass dish used by biologists to culture Bactria, viruses and other...

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• Science
If people increase the amount of carbon dioxide that is produced, it will increase global warming. This will be true if two things are also true: We must assume that the scientists are correct and...

Asked by sujen on via web

• Science
Given: Number of saws = x = 8400 - 36p Total cost of production = C(x) = 60000 + 72x Where p = price per saw. Solution (A) Price p as function of demand x We get this by rearranging the terms in...

Asked by ctr175 on via web

• Science
As a matter of fact water does absorb considerable part of the excess heat from the sun reaching the earth due to depletion of ozone layer. But the total quantity of excess heat is so much that it...

Asked by maariza2002 on via web

• Science
I'm sure everyone has! What exactly are you supposed to be finding out? Rivers flow as rain water seeks its lowest level. On the eastern seaboard, rain falling on the east side of the Appalachians...

Asked by ryan181818 on via web

• Science
I think you should probably look at your book for this, because clearly you are expected to come up with information from the book. We do not know what sorts of information you are supposed to put...

Asked by ryan191919 on via web

• Science
Every solution containing two or more substances that do not combine chemically is a mixture. Burt every solution is not a mixture. A mixture can be a mixture can also be in solid or gaseous form...

Asked by qwerty1223 on via web

• Science
Circadian rhythm is affected by numerous things, one of which is shift work. I know this first hand because I have a close friend who works very odd hours. For example, he works twelve hour shifts....

• Science
The presumption that the factors causing the collapse of buildings are time, weather or pollution was invalidated. Researches have shown that assumption is only partially true. To all these...

Asked by purpl3pink on via web

• Science
The Sclerocarya Birres, which means hard nut, is a tree native to Africa. These trees spread through Africa as the Bantu migrated. The fruit from this tree has historically been a staple of their...

Asked by uwe on via web

• Science
It was found that when walnut is subjected to stressors, it produces some form of aspirin. This discovery was made accidentally when scientists have installed in a walnut a tool to monitor the...

Asked by eligia on via web

• Science
Unlike humans, where the movements of the hands and feet are making possible the action of swimming, for microorganisms is very important the composition and the viscosity of the environment where...

Asked by jolenta on via web

• Science
In Alfred Wegener's theory of Pangaea, the one proto-supercontinent, all the continents at one time fit together--which is something every schoolchild looking at a map in first or second grade has...

Asked by r10 on via web

• Science
There is a doctor-patient clause within the Hippocratic Oath that, according to Perez, Gelpi and Rancich, lays a "prohibition on doctor-patient sexual relations" for social reasons as well as...

Asked by dingbat on via web

• Science
This an extremely broad and complicated question. There will be no right answer and people will disagree. Therefore, my answer will only offer one perspective that comes from the Greeks. In Plato's...

Asked by tlonggone on via web

• Science
This is a complex question. A very helpful way to look at this question is not only by examining biological differences, but also by looking at sociological perspective. In other words, the...

Asked by npanswes on via web

• Science
The pH scale range is from 0-14 with 7 being neutral. The closer you get to 14 the more basic the solution is and the closer you get to 0 the more acidic the solution is. The lower the pH the...

Asked by disaster14 on via web

• Science
Dark matter is thought to make up 90 percent of the universe. It cannot absorb light and it cannot give off light so it considered to be invisible. It is thought to exist because of gravitational...

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• Science
Pseudomonas is dangerous to those persons who have an impaired immune system. For those individuals who are healthy is isn't nearly as dangerous. It causes many different kinds of infections such...

Asked by ingw33 on via web

• Science
Einstein's theory states that the universe would have four dimensions (3 of space and one of time). Our everyday experience of life clearly shows us that space is three-dimensional (so we perceive...

Asked by creativluana on via web

• Science
In order to identify the element, first we have to find it's atomic number, Z (the number of protons). Also we know that the number of protons is equal to the number of electrons. We don't know the...

Asked by bleachp3ach on via web

• Science
The main objective is to obtain products at a much lower manufacturing cost, compared to the one resulted from conventional applications. CNC applications, by their complexity, allow the obtaining...

Asked by voica on via web

• Science
We'll use the following notation: A-mass number Z-atomic number The mass number could be calculated as a sum of protons and neutrons, and knowing that the atomic number is given by the number of...

Asked by albimaia on via web

• Science
First of all, let's establish the formula for the substance as being:NaxCyOz, where x=the number of Na atoms; y= the number of C atoms; z= the number of O atoms; Then, we'll establish the atomic...

Asked by ulichh on via web

• Science
A solution is a mixture of two or more substances that cannot be separated by alteration process. Many solution include liquid but all of them need not. The solutions can be in solid, liquid, or...

Asked by qwerty1223 on via web

• Science
Is this in regard to a work of literature, and if so, which one? Bound roots on a plant means the roots are tightly wrapped in something like burlap. It keeps the root ball intact and makes...

• Science
Is it possible? Surely. Scientists have already successfully cloned animals, though I suppose it depends on your definition of "success". Humans are animals too, and a collection of tissues and...

Asked by hopesob on via web

• Science
Jams and jellies have a ph in the lower part of the 3s, and not generally up near 4. According to the site I am linking to, the ph of jam and jelly is around 3.1 to 3.5. Interestingly, this...

Asked by demo on via web

• Science
Sea breezes are the result of uneven surface temperatures. Sea breezes occur due to the land being warmer than the water of the sea or the sea being warmer than the land. Early in the day, the...

Asked by maariza2002 on via web

• Science
If you are asking if the moon is the only moon that can eclipse the sun, then the answer is yes. We only have one moon. The planets Mercury and Venus pass beween the earth and the moon but are...

Asked by loissoll on via web

• Science
One biome that is in Sweden is tundra, more specifically alpine tundra. Alpine tundra is characterized by being in a high elevation and covered with snow and very cold, although it is not as cold...

Asked by katy4239 on via web

• Science
A genetic mutation is a mutation that has permanently changed the DNA sequence. Genetic mutations occur in a couple of different ways. One way that they occur is by the transfer of the mutation...

Asked by kirt-b on via web

• Science
I have a lab that is sling the following: Design a procedure and find the values for the coefficients of kinetic friction and maximum static friction. I have to find out how does the coefficient...

Asked by hardworker on via web

• Science
physical properties: Different gases have different smells. Ozone (O3) smells like a spring thunderstorm, whereas dimethyl sulfide (DMS) smells like garlic. Chemical properties: different gases...

Asked by nanosy on via web

• Science
Group 16 is comprises the oxygen family. Oxygen, sulfur, selenium, tellurium, and polonium are all elements that make up the oxygen family, which is also known as "Chalcogen". "The name means...

Asked by hklhls on via web

• Science
There are no muscles in the brain. The brain is not an organ that moves anything by using its own power. Instead, the brain is simply an organ that does the thinking and the ordering in the...

Asked by qwertyiscool on via web

• Science
Acid rain is harmful to humans but in an indirect way. It is the pollutants in acid rain that cause the damage we experience. Sulfur dioxide and nitrogen oxide are the harmful contaminants....

Asked by enotes on via web

• Science
Mutations happens when there is a permanent change within the DNA of a species. These changes can be helpful to the organism but it can also be harmful. The benefits of mutations are for survival....

Asked by papanextdoor on via web

• Science
Mutagens are physical or chemical agents that alter the DNA. Since the DNA is the command-line for every cell in your body, this will severely screw up that cell/those cells affected by the...

Asked by mamanextdoor on via web

• Science
Mutations are the result of DNA replication errors that are not corrected during transcription. As DNA replicates and recombines during mitosis, the possiblity of errors increases. Once an error...

Asked by jiconextdoor on via web

• Science
Somatic mutations are mutations that occur in cells of the body not including those cells that are responsible for reproduction. This means that these mutations do not happen in the sperm cells or...

Asked by girlnextdoor on via web

• Science
The structure of the DNA molecule is called a double helix made up of nucleotides. Nucleotides are made of three parts: deoxyribose (sugar), phosphate, and nitrogenous bases. The double helix of...

Asked by boynextdoor on via web

• Science
I love this question! An organelle is to a cell what an organ is to a human body. The term "organelle" is basically the same as to say "little organ". This is interesting because, inside of the...

Asked by irvine on via web

• Science
DNA codes for proteins by the sequence of nucleotides in the DNA. Each set of 3 nucleotides codes for a specific amino acid. Sometimes, a change in a nucleotide does NOT change the amino acid (and...

Asked by animallover on via web