# Homework Help

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• Science
You need to remember what a solute, a solvent and a solution represent. A solvent in a solution represents the substance that performs the dissolving process, while the solute represents the...

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• Science
Force represents the rate of change of momentum. Force depends on the mass and acceleration of the object whose position is changed by the effect of force. The equation that describes the relation...

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• Science
The study of Rahman et al., evaluated the effect of arsenic exposure, through consumption of contaminated tube well water, on infant death and fetal loss in Matlab, Bangladesh. The authors report a...

• Science
Cost of 1 can = \$2.99 Amount of drink mix in a can = 50.2 gm Cost of drink mix per gram = \$2.99/50.2 gm = 59.6 cents/gm. One lb = 454 gm Cost of 454 gm drink mix = 454 gm x 59.6 cents/gm =...

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• Science
A substance with a density of 0.77 gm/cm^3 will float in Water. The reason for this, In simplest terms, is that the substance is lighter than water. Water has a density of about 1 gm/cm^3 and hence...

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• Science
The study by Rahman et al., investigated the effect of consumption of arsenic contaminated tube well water on infant death and fetal loss in Bangladesh. The exposure was measured in terms of...

• Science
Water mold includes the taxonomic class of protists, which are eukaryotes, including algae, amoeba, ciliates or flagellates. Protists tasonomic class consists of unicellular and multicellular...

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• Science
Prevention or treatment of high blood pressure includes treatment and control of factors that could influence it, such as diet, stress level and daily exercises. There exists many herbal treatments...

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• Science
Salamanders are long and slender. So they look similar to a lizard, which are reptiles. However, salamanders are most closely related to amphibious newt. The main difference between a reptile and...

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• Science
If you wonder why the metals found in Group II, in peridic tables, are called alkaline, the response is linked to the fact that they have the property to form solutions having higher pH levels....

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• Science
Iron and sulfur are two different elements. A mixture of iron and sulfur has separate particles that are atoms of the two elements. It is quite easy to separate the two when they are present in a...

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• Science
Organisms that make their own food are called producers (because they PRODUCE, or make, their own food). Other names for producers are autotrophs (auto = self, to they feed themselves). Producers...

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• Science
A body is said to be at absolute zero if its temperature is 0K or -273.15 C. At temperature T a body emits electromagnetic radiation at a rate `P = sigma*T^4` where P is the power per unit area, T...

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• Science
A nonrenewable resource is one that is not easily replaced in comparison to its level of consumption. Examples of nonrenewable resources are most fossil fuels such as oil, petroleum, or natural...

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• Science
The speed of chemical reactions, such as photosynthesis, cellular respiration and creation of new proteins, is increased by means of biological catalysts, represented by enzymes, which are soluble...

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• Science
Ribosomes, along with RNA (m, t, and r), work to produce proteins. If ribosomes are located on the endoplasmic reticulum, then it is called a rough endoplasmic reticulum (due to the "bumpy"...

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• Science
Kinetic energy is the energy of an object due to its motion, while the potential energy is the energy due to its position. The various forms of potential and kinetic energy are: Gravitational...

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• Science
Liver is the largest gland in human body. It is also the largest (internal) organ in our body and can weigh up to 1.5-1.6 kg for a human adult. That is, about 1/50th of the body weight is because...

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• Science
There can be a number of chemical processes by which a compounds can be broken down into simpler substances. The most common and wide-spread of such processes is Catabolism. Along with anabolism,...

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• Science
The temperature of objects is measured in degree Celsius by first assigning a temperature that has a value 0 C. A temperature lower than 0 C is expressed as a negative number and a temperature...

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• Science
Neutral atoms that gain or lose an electron are classified as anions or cations. Cations are neutral atoms that lose an electron, becoming positively charged. Ionization represents the process by...

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• Science
There exists different forms of energy, such as electrical energy, chemical energy, mechanical energy, nuclear energy, gravitational energy. These forms of energies can be converted between one...

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• Science
Benedict's reagent is a solution that has sodium citrate, sodium carbonate and cupric sulphate pentahydrate. It is used to test for the presence of reducing sugars. These include monosaccharides...

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• Science
A substance can physically exists in one of three states, solid, liquid and gas. (A fourth state plasma that can be observed is not relevant to this answer) The temperature of a substance and the...

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• Science
For an ideal gas, the temperature(T), volume(V) and pressure(P) are related by the ideal gas law PV = n*R*T where n is the amount of substance in moles and R is the gas constant. If pressure and...

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• Science
Alcohols are available naturally as well as prepared by man-made engineered systems. Alcohols are organic compounds with a hydroxyl group and are of various types. The most common forms of alcohol...

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• Science
All elements are found as particles called atoms, composed to protons, neutrons and electrons, the exception being hydrogen which does not have neutrons. The protons and neutrons form the nucleus...

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• Science
Ethanol is a chemical compound made up of carbon, hydrogen and oxygen atoms. The chemical formula of ethanol is `CH_3CH_2OH` . When ethanol is burnt, it reacts with oxygen and produces water and...

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• Science
Fish belongs to the vertebrate group, consisting of 5 types of vertebrates, such as birds, mammals, rodents, marsupials, primates, fish, amphibians, reptiles. Fish were among the first developed...

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• Science
ATP unstable molecules are the main source of energy for cells. ATP molecules are produced by the energy generated by catabolic reactions, and ATP energy is used in anabolic reactions. ATP is...

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• Science
The elements are arranged in the form of a table, known as periodic table. There are 18 columns (known as groups) and 7 rows (known as periods, including actinides and lanthanides). The question...

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• Science
A wave can be considered as a mean that helps the energy to travel from one point to another. Waves can be classified with respect to their characteristics, such as the direction of movement of...

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• Science
Collections of highly specialized cells are found in multicellular organisms. For instance, in animals, there can be found many types of specialized cells, such as skin cells or nerve cells. The...

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• Science
Law of photochemical equivalence represents a basic law in photochemistry. Quantum theory of light states that the energy is emitted or absorbed in small groups of quanta, having the energy `e =...

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• Science
A knowledge of properties of matter is important not only to scientists but engineers as well (and anybody who is working with matter). The properties on interest, typically, include melting point,...

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• Science
The equator must run between the houses of the two neighbors making the shadow plots. Light rays from the sun are considered parallel to each other by the time they reach the earth. This is...

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• Science
Humans have 5 senses, we can see, hear, smell, taste and feel. There are many things that we cannot see, but it is possible to detect the same using one or more of our other senses. For example, we...

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• Science
It is helpful to know the definition of each option prior to making a selection. A.) Transpiration is the evaporation of water through the leaves of plants. B.) Groundwater is exactly that- water...

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• Science
Carbon is an element with atomic number 6 and atomic mass 12. Any substance can exist in one of four physical states, solid, liquid, gas and plasma. The temperature of the substance and the...

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• Science
Photosynthesis captures sunlight energy. This energy is used to transform water and carbon dioxide into oxygen and glucose. It is completed within producers, or organisms that make their own food....

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• Science
I believe the question asks to identify the organelles that are present inside the cell and to explain the function of these organelles within the cell? Thus, that is what my answer will reflect....

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• Science
The study by Rahman et al. evaluated the effect of consumption of arsenic contaminated tube well water on infant death and natal loss in Bangladesh. There are a number of bias that may be present...

• Science
George Box said in the 1970s 'All models are wrong but some are useful'. From this, there is an obvious major limitation which is that models can never be a truly perfect representation of...

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• Science
Although the most common hair colors are black, brown and blonde, some people do have red or orange (or other hair colors) hairs. This can be explained by genetics. The red (or similar colors or...

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• Science
The ball went up, reached zero velocity and then fell back to the ground. All this happened in 2 seconds. Since the acceleration and deceleration is same in magnitude, that is equal to acceleration...

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• Science
There are three states of matter: solids, liquids and gases. Each state of matter has a unique set of characteristics that involve their shape and matter. Solids are said to have both a definite...

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• Science
1. Receptors (protein molecules) recognize which substances can pass through. Thus, the membrane is called selectively permeable. 2. Diffusion is the passing of objects across a semipermeable...

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• Science
Weight is defined as the measure of the gravitational attraction between two physical objects. Gravity is defined as the force that attracts two physical objects towards one another. However, the...

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• Science
1. The lipids in the cellular membrane are amphiphilic i.e., they have both the hydrophobic and hydrophilic ends. The cell membrane is made up of a lipid bilayer (two layers) with proteins...

Asked by hamidu1 on via web