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Science
Depending on the species and age, zebras can have stripes that range in color from black to different shades of brown. There are three species of zebra: Grevy’s, mountain, and plains. All wild...
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Science
Photosynthesis is the process in which organisms convert carbon dioxide and water into oxygen and glucose. It requires light energy as well which is absorbed by the chlorophyll. The water is...
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Science
Photosynthesis is most commonly associated with plants. In this process, plants consume carbon dioxide and water in the presence of sunlight. The resulting products of this process are glucose and...
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Science
Acids are the substances that are capable of donating one or more protons (hydrogen ions, `H^+`). Corrosion is the process in which a substance (such as a metal or organic material) is gradually...
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Science
It looks as though you are asking if the differing distances of the North and South Poles from the Sun, caused by the geometry of the tilt of the Earth on its axis, is a likely explanation for the...
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Science
It is not correct to say that the Sun is a force. Gravity is a force of attraction between any two bodies that have mass. The gravitational attraction to the Sun is far greater than the attraction...
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Science
The biggest difference between magma and lava is their location. Magma is found underneath the surface of Earth, while lava is found on Earth's surface. Both magma and lava are technically the same...
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To learn about the Earth's interior, geologists use two main types of evidence: 1) Direct evidence from rock samples, and 2) Indirect evidence from seismic waves. Rock samples are obtained by...
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Science
DNA viruses are easier to manage than the RNA viruses primarily because of the differences in their mutation rates. The mutation rate of RNA is much higher than that of DNA. To put things in...
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Science
The vessels of the xylem are more efficient than the tracheids in water conduction due to the presence of perforations in them. These perforations allow for the continuous flow of water into the...
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Science
Igneous, sedimentary, and metamorphic are the three types of rocks. Among these, igneous and metamorphic rocks share the following similarities: Both of them are types of rocks. Temperature is a...
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Science
I would like to correct this question in a few ways. Planets do not rotate around the sun. Planets rotate (spin in one place) around a planetary axis and revolve (move in a circle/ellipse) around...
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Science
The debate over the safety of GMOs is far from over. While many people are concerned about the impact on human health, there are other issues to consider. A possible problem is the danger of...
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Science
Amoeba is a protozoan and a unicellular organism, and hence lacks any specialized organelle for nutrition. The nutrition in amoeba takes place with the help of pseudopodia. The nutrition of amoeba...
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Science
Plants take in oxygen constantly during a process called respiration; they take in oxygen to derive energy from their food and produce carbon dioxide as a waste product. All living things use this...
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Science
Silver (symbol: Ag) is a metal and has only 1 ion (`Ag^+`), which is formed when the silver atom loses 1 electron. Metals generally have a tendency to lose one or more electrons, and this results...
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Science
Pure substances are made up of one type of atom or molecule only (resulting in elements or compounds). For example, sodium is a pure substance and is composed of sodium atoms only. Similarly, table...
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A plane mirror is a mirror whose surface is planar or “flat.” The familiar mirrors found in bathrooms and dressing rooms are normally plane mirrors. The shape of a mirror’s surface affects...
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Science
Electrolytes are important to your body. They are minerals that carry an electric charge, and they are important because they help maintain fluid levels in the body as well as the pH of the body....
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Erosion and deposition are two continuous processes during the river flow. Typically, when a river comes across a "bend," the erosion takes place on the outer side of the bend, and the deposition...
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The seven characteristics of living beings are: Motion: Living things move. For example, human beings and animals walk, plants have parts that help them move in response to the motion of the Sun....
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Science
Protists are eukaryotic organisms and are mostly unicellular although some multicellular protists (e.g., kelp and seaweed) exist. Protozoa, algae, and molds are some common examples of protists....
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Science
Latitude and longitude are imaginary lines drawn on maps for the purpose of easily locating any place on Earth. Any place can be identified by a given set of latitude and longitude coordinates....
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The shifting of the geomagnetic field means that Earth's magnetic poles will switch places. In other words, our magnetic compass's north will point to Antarctica, and the south will be somewhere...
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Science
An atom is composed of the following three subatomic particles: 1) Protons: positively charged particles that reside in the nucleus of the atom. 2) Electrons: negatively charged particles that are...
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Science
Before answering this question, we need to know what kind of color is in purple food coloring. Is it a purple dye, or is it a mixture of colors like blue and red? Single pigments are normally...
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Science
Water quality standards are adopted to ensure that the water is fit for the designated applications such as: Recreation Public drinking water supply Agricultural, industrial, navigational uses...
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Science
Waves can be thought of as propagation of disturbance without movement of matter. We come across waves all the time: light waves, sound waves, radio waves, and so on. With the propagation of...
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Science
Biotic and abiotic are terms commonly used in ecology to describe the living and non-living components of the system. Biotic components of an ecosystem represent all the living beings in that...
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Science
The simple answer is that organs need to be made of different tissues in order to best perform a designated job. Tissues are made of similar cells, and different tissues have different functions....
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Science
Despite both of these words having a spelling that is somewhat similar, the processes that each term refers to are vastly different. Transpiration is the process by which water in plant leaves...
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Science
All matter is composed of atoms. If a substance is made of only a single type of atom, then the substance is an element. Conveniently, all of the known elements are listed on the periodic table of...
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Science
Exosmosis and Endosmosis refer to motion of water into the cell or out of the cell. When water moves into the cell, the movement is known as endosmosis. On the other hand, when water moves out of...
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Science
Combustion or burning of materials requires three things: combustible material (or fuel), energy (to raise the fuel to the ignition temperature), and an oxidizer (to take electrons). Oxygen is a...
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Science
Burning, or combustion, is a chemical change, and one of the most dramatic to observe. A chemical change happens when the molecular structure of a substance changes in a way that cannot be...
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Science
”Strong” is a relative term. The induced dipole-induced dipole forces between nitrogen molecules are weaker than the attractions between permanent dipoles or hydrogen bonding interactions....
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Science
There isn't enough information in the question in order to provide a definitive answer. We would need to know how much of the rock contains the radioactive element and/or how much of the stable...
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Science
Chlorine gas is highly reactive, so to begin with we expect that a reaction is likely to occur even without the addition of heat. Although this situation is undoubtedly an aqueous solution...
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Science
The sun has zero moons. A moon is a natural satellite of a planet, a dwarf planet, or even an asteroid. The sun is not one of those items. The sun is a star, and stars do not have moons; however,...
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Science
Mesosomes are cell organelles and are typically present in prokaryotes. They are analogous to the mitochondria in eukaryotes. Mesosomes are a part of the structure of the cell membrane, found on...
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Science
Water is a unique substance without which life on Earth would be nothing like it is, if life could exist at all. One important property of water is that it is a polar molecule. This allows water to...
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Science
Papayas contain several different brightly colored carotenoids, and yellow papayas in particular contain a significant amount of the yellow compound beta-carotene. Beta-carotene is found in many...
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Science
Environmental factors can cause changes in the frequency of a particular gene expression within a population or species of organism. For example, if a habitat is fairly light in color, then...
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Science
The key to Darwin's theory of natural selection is genetic variation. Genetic variation can happen for a variety of reasons, but sexual reproduction maximizes genetic diversity. As the gene pool...
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Science
When a current carrying wire is placed in a magnetic field, it experiences a mechanical force. This was discovered by Michael Faraday in 1821. The wire will not experience any mechanical force if...
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Science
By "non-humans", I assume you mean life forms other than human beings, such as plants and animals. Aerobic life forms consume oxygen and produce carbon dioxide during the process of aerobic...
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Osmosis is the diffusion of water across a semipermeable membrane. Osmosis is a passive transport mechanism; therefore, it does not use any energy in order to make it happen. It works based on...
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Science
Siats, or more specifically, Siats meekerorum, was a species of giant dinosaurs that predated Tyrannosaurus Rex (or T. rex). Siats lived on Earth around 98 million years ago and went extinct...
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Currently, Uranus has 27 known moons. That number is likely to increase as telescopes get better and better. Way back in 1985, we only knew about 5 of the current 27 moons. The most recently...
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Science
In Rutherford’s famous experiment, a beam of alpha particles from a radioactive source was directed at a thin gold foil. An alpha particle has mass and a positive charge, so it will be slowed or...
