Answer the following question given this paragraph: Epithelial tissue from epithelium. Below this is dermis, thicker and with blood vessels. Two specialized epithelia: pseudostratified transitional Pseudostratified epithelia lines the trachea (where it is ciliated)and the male urethra (where it is non ciliated), looks stratified but not. Transitional epithelia found only in bladder and urinary system. As it stretches it appears to go from 6 to 3 cell layers deep. Glandular epithelia (gland: group of cells that excretes something. mostly derived from epithelium. Glands are classified into endocrine and exocrine by where they excrete. Endocrine glands secrete hormones into the blood without use of ducts. Exocrine glands secrete onto the body surface or into a cavity, thru a duct. Exocrine substances include sweat, mucous, oil, and saliva. An exocrine gland is the liver, which secretes bile. Q: Is sweat an exocrine or endocrine substance? Choices: - neither - both - exocrine - exocrine A:
exocrine
(Question)
Answer the following question given this paragraph: The expansion of alcohol in a thermometer is one of many commonly encountered examples of thermal expansion, the change in size or volume of a given mass with temperature. Hot air rises because its volume increases, which causes the hot air's density to be smaller than the density of surrounding air, causing a buoyant (upward) force on the hot air. The same happens in all liquids and gases, driving natural heat transfer upwards in homes, oceans, and weather systems. Solids also undergo thermal expansion. Railroad tracks and bridges, for example, have expansion joints to allow them to freely expand and contract with temperature changes. What are the basic properties of thermal expansion? First, thermal expansion is clearly related to temperature change. The greater the temperature change, the more a bimetallic strip will bend. Second, it depends on the material. In a thermometer, for example, the expansion of alcohol is much greater than the expansion of the glass containing it. What is the underlying cause of thermal expansion? As is discussed in Kinetic Theory: Atomic and Molecular Explanation of Pressure and Temperature, an increase in temperature implies an increase in the kinetic energy of the individual atoms. In a solid, unlike in a gas, the atoms or molecules are closely packed together, but their kinetic energy (in the form of small, rapid vibrations) pushes neighboring atoms or molecules apart from each other. This neighbor-to-neighbor pushing results in a slightly greater distance, on average, between neighbors, and adds up to a larger size for the whole body. For most substances under ordinary conditions, there is no preferred direction, and an increase in temperature will increase the solid's size by a certain fraction in each dimension. Linear Thermal ExpansionThermal Expansion in One Dimension The change in length L is proportional to length and length is summarized in the equation. Q: What term is used to describe the change in size or volume of a given mass with temperature? Choices: - freezing - thermal contraction - atmospheric expansion - thermal expansion A:
(Answer)
thermal expansion
Ques: Answer the following question given this paragraph: Some enzymes require the presence of a non-protein molecule called a cofactor in order to function properly. Cofactors can be inorganic metal ions or small organic molecules. Many vitamins, such as B vitamins, act as cofactors. Some metal ions which function as cofactors for various enzymes include zinc, magnesium, potassium, and iron. Q: Some enzymes require the presence of a non-protein molecule to function properly. what is that molecule called? Choices: - substrate - coenzymes - prothetic - cofactor A:
Ans: cofactor
(Q).
Answer the following question given this paragraph: It could easily be said that a cell is the fundamental unit of life, the smallest unit capable of life or the structural and functional unit necessary for life. But whatever it is, a cell is necessary for life. This concept will discuss some of the fundamental properties of the cell with lessons that include the cell structure, transport in and out of the cell and cell communication. Q: What is considered to be the "fundamental unit" of life? Choices: - proton - organ - bacteria - cell A:
(A).
cell
Ques:Answer the following question given this paragraph: The spleen is in the upper abdomen. It filters pathogens and worn out red blood cells from the blood, and then lymphocytes in the spleen destroy them. Q: What filters pathogens and worn out red blood cells from the blood? Choices: - the bladder - the stomach - the pancreas - the spleen A:

Ans:the spleen
Answer the following question given this paragraph: Q: When plants reproduce, the offspring has characteristics similar to the? Choices: - grandparents - cousins - siblings - parents A:
parents