Answer the following question given this paragraph: Courtesy of the CDC/Debora Cartagena. Cigarettes are a major source of chemical carcinogens . Q: Cigarettes are a major source of what kind of chemical substances linked with cancer? Choices: - chemicals - pesticides - alkaloids - carcinogens A:
carcinogens
Answer the following question given this paragraph: Q: Phagocytosis, pinocytosis, and receptor-mediated endocytosis are the three types of what? Choices: - modulators - mitosis - nanoparticles - endocytosis A:
endocytosis
Q: Answer the following question given this paragraph: that have taken place during this time. There are however, areas of knowledge and human experience that the methods of science cannot be applied to. These include such things as answering purely moral questions, aesthetic questions, or what can be generally categorized as spiritual questions. Science has cannot investigate these areas because they are outside the realm of material phenomena, the phenomena of matter and energy, and cannot be observed and measured. The scientific method is a method of research with defined steps that include experiments and careful observation. The steps of the scientific method will be examined in detail later, but one of the most important aspects of this method is the testing of hypotheses. A hypothesis is a suggested explanation for an event, which can be tested. Hypotheses, or tentative explanations, are generally produced within the context of a scientific theory. A scientific theory is a generally accepted, thoroughly tested and confirmed explanation for a set of observations or phenomena. Scientific theory is the foundation of scientific knowledge. In addition, in many scientific disciplines (less so in biology) there are scientific laws, often expressed in mathematical formulas, which describe how elements of nature will behave under certain specific conditions. There is not an evolution of hypotheses through theories to laws as if they represented some increase in certainty about the world. Hypotheses are the day-to-day material that scientists work with and they are developed within the context of theories. Laws are concise descriptions of parts of the world that are amenable to formulaic or mathematical description. Natural Sciences What would you expect to see in a museum of natural sciences? Frogs? Plants? Dinosaur skeletons? Exhibits about how the brain functions? A planetarium? Gems and minerals? Or maybe all of the above? Science includes such diverse fields as astronomy, biology, computer sciences, geology, logic, physics, chemistry, and mathematics (Figure... Q: The scientific method is a method of research with defined steps that include experiments and careful what? Choices: - discovery - estimation - consideration - observation A:
A: observation
Question: Answer the following question given this paragraph: The population is an important unit in ecology as well as other biological sciences. How is a population defined, and what are the strengths and weaknesses of this definition? Are there some species that at certain times or places are not in populations?. Q: During interphase, the cell undergoes normal growth processes while also preparing for what, by accumulating energy and building blocks of dna? Choices: - proteins division - chromosome division - technology division - cell division A:
Answer: cell division
*Question*
Answer the following question given this paragraph: Acetyl-CoA is formed from the breakdown of carbohydrates, lipids, and proteins. It is used in many biochemical pathways. Q: Acetyl-coa is formed from the breakdown of carbohydrates, lipids, and what else? Choices: - hormones - acids - hydrocarbons - proteins A:
**Answer**
proteins
Answer the following question given this paragraph: The cell is the basic unit of life. A cell is made of molecules, which are made of elements. All life-which means all bacteria and archaea, all protists, fungi, plants and animals-is built around the element carbon, and four categories of organic compounds: carbohydrates, lipids, proteins, and nucleic acids. These molecules come together to form a cell, which is the basis of life. One particular type of protein, enzymes, are biological catalysts, allowing biochemical reactions to proceed at the rate necessary to maintain life. One other molecule, water, is also essential to life, though water is not an organic compound. Q: What element is all life built around? Choices: - hydrogen - neon - oxygen - carbon A:
carbon