# Science

• Science
Prokaryotes can be divided into microorganisms called bacteria and archaea. Four differences between bacteria and archaea include: 1. Bacterial cell walls have peptidoglycan (mesh-like structure...

• Science
Hello! Osteoclasts and osteoblasts are both kinds of bone cell. Their difference lies with their functions. Osteoblasts are the kind of bone cells responsible for the bone formation. It is also...

• Science
I assume you are referring to human females. A female releases only 1 egg per cycle of 28 days or so. The female body over its lifetime develops a certain number of eggs. These are released one at...

• Science
Compounds are pure substances that are combinations of two or more elements. The most basic unit of a compound is the molecule, which is a combination of two or more atoms of different elements....

• Science
This is such an important conversation to have. Many people feel that cancer is either in the metaphorical hand of cards they have been dealt or it isn't, and they often feel powerless to change...

• Science
Acid deposition, also called acid rain, is at its core a chemical reaction. When compounds like sulfur and nitrogen oxide are released into the atmosphere, they tend to rise very high and then...

• Science
There is certainly a link between loading up on carbohydrates and performing well in an event that heavily taxes the body and its fuel reserves; however, "carb loading" is most definitely not the...

• Science
The three main parts of the human ear are the outer ear, middle ear, and inner ear. The first part of the outer ear is the pinna or auricle. This is the part of the ear that you can see. It is made...

• Science
This answer is going to focus on the final question that asks about whether or not the general population should trust the media on its reporting of scientific research. In general, I would say...

• Science
The term "mutation" is probably not quite right to describe genetics in Gattaca. Mutations are random and often harmful, sometimes helpful events that occur during gene reproduction. In Gattaca, we...

• Science
Serotonin is a neurotransmitter involved in the regulation of sleep. It is also involved in regulating various emotional states. When neurons are damaged in some way as to suppress or disrupt the...

• Science
Sandstone is created by the accumulation of sediments that are cemented together under pressure. Water is therefore necessary for the formation of sandstone. Sandstone can form at the bottom of...

• Science
"Charge" is a fundamental property of the electromagnetic force. Unfortunately, this is one of those dead-end subjects where even our most advanced understanding is glaringly incomplete, although...

• Science
The answer to this question is that the situation being asked about is an example of a positive feedback loop. Conveniently, the female menstrual cycle contains both negative and positive feedback...

• Science
Alkanes and alkenes are two fundamental categories of hydrocarbon molecules (being composed primarily of a carbon chain with non-chain bonds filled by hydrogen). The difference between alkanes and...

• Science
When Marie Curie was conducting her experiments, nothing was known about the dangerous effects of exposure to ionizing radiation. Therefore, when she was conducting her experiments with...

• Science
The terms "intrinsic" and "extrinsic" involve pretty typical scientific/medical root word language that appears in many other places, some of which are probably familiar to the average person....

• Science
The ways stress affects the heart are both direct and indirect, so I think that needs to be part of your thesis. Many writers find it helpful to construct a thesis that leads naturally to the body...

• Science
Blood vessels are basically organic tubes that the blood travels through. Blood pressure describes the force with which the blood is passing through the tubes and simultaneously pressing against...

• Science
Yes, I would say that is a decent example of an unconditioned punisher. It is definitely not an example of a conditioned punisher. An unconditioned punisher is a stimulus of some kind that is...

• Science
There are many ways to relieve or alleviate pain that do not involve the usage of drugs. One quick and easy method that most athletes are likely very familiar with is ice. Generally speaking, ice...

• Science
In this example, it would be a motivating operation. To understand why, it is also important to understand why it is not the other three options: Extinction is the diminishing of a particular...

• Science
Chickenpox, or varicella, was once a very common childhood illness but it is preventable. The main factor that would prevent children from contracting chickenpox is vaccination. The varicella...

• Science
The short and easy answer is "it depends." The production of biofuels depends on the type of biofuel being produced. When biomass is converted directly into liquid fuels, those fuels are called...

• Science
As an observation, there is not much to explain here; however, the observation certainly brings to light several questions that could be better answered through scientific investigation. It is...

• Science
Thomas Kuhn and Peter Galison largely approach scientific breakthroughs in different ways. There are a few similarities, in that both men address the innovative approaches of individuals as driving...

• Science
A properly functioning compass will always point towards magnetic north. This is because the magnetic pin in the compass will align itself to the top of the planet's magnetic field and point itself...

• Science
Mitosis and meiosis are similar enough that it is common for students to mix up the two processes. It doesn't help that both processes use prophase, metaphase, anaphase, and telophase as phase...

• Science
Epigenetics are the "markers" that determine which portion of our DNA is meant to be used at a given time, by a given cell. Since each cell contains a complete copy of the entire organism's DNA,...

• Science
Mitosis and meiosis are fundamentally different based on their function in a living organism. Mitosis is the division of somatic cells, and its primary purpose is to facilitate the growth of the...

• Science
Homeostasis involves body systems working to maintain a consist pattern of physiological behavior within certain boundaries. Homeostasis in the blood is concerned with multiple factors, such as;...

• Science
The stomach, like all other parts of the gastrointestinal tract, is made up of four different kinds of tissues, each of which has a variety of functions associated with digestion. These parts are...

• Science
Epigenetics is a fairly recent emerging science. It is the study of phenotypic changes that are caused by the modification of gene expression rather than the modification of the DNA itself. The...

• Science
In the second half of the 1700s, a scientist by the name of Joseph Priestley conducted a groundbreaking experiment that nicely demonstrates the tight relationship that exists between cellular...

• Science
The condition that this question is asking about is something called aneuploidy. When a cell is "euploid," it is normal or "good." The prefix "an-" means essentially "not," "without," or "lacking;"...

• Science
Consequence-based intervention is very different from punishment. The goal of any intervention is to decrease the instances of negative behavior. Therefore, you can consider it a success if the...

• Science
At the start of his essay in Questioning Collapse, Tim Murray claims that it is a requirement for societal sustainability that people engage "in an honorable and honest discourse about their...

• Science
This question asks for the "most likely" reason for why the individual chromosomes present in a spermatozoan at the end of meiosis are different than the individual chromosomes that were present at...

• Science
Viruses, in certain conditions, can benefit health and agriculture. One example relates to the development of the immune system and the possible replacement of beneficial bacteria in the...

• Science
RF, or Retention Factor values, are fractions used in chromatography, representing the known fraction of the total distance traveled by the solvent that the given material will travel. An RF of 1...

• Science
The fact that it's called an ecosystem implies that there are many factors contributing to this idea, and I think it would be difficult to say that any one of them is the most important....

• Science
Let me start by answering the final question. Yes, cellular respiration without photosynthesis is possible as long as the oxygen and glucose that cellular respiration requires are supplied via some...

• Science
There are multiple questions being asked here. The following answer will focus on the first two questions as they are quite closely related. Meiosis is a process of reduction division. Students are...

• Science
Jean Watson is an American nursing theorist who is widely known for her theory of human caring. The work of Watson is accepted as the premier research in the field of nursing, and her research on...

• Science
Of those three processes, gene flow is the least related because gene flow will introduce new genetic coding into an existing population. The reason for this is because of what gene flow is. Gene...

• Science
The bioluminescence that some species use to hunt prey is an adaptation that increases the organism's overall fitness. Without the ability to generate that light to attract prey, the species will...

• Science
I've rewritten the reactions here for clarity.I left out all of the matter phase subscripts because they aren't particularly relevant for classifying the reactions. Cu(OH)_2 -> CuO + H_2O `CuO...

• Science
This question can be answered in a variety of ways, so I'd like to briefly highlight some of those various pathways for this answer. Animals see humans exactly the way that you see humans because...