Answer the following question given this paragraph: This long, almost nonstop molecule is called a polymer (from the Greek meaning "many parts"). The original partethyleneis called the monomer (meaning "one part"). The process of making a polymer is called polymerization. A polymer is an example of a macromolecule, the name given to a large molecule. Simple polymers are named after their monomers; the ethylene polymer is formally called poly(ethylene), although in common use, the names are used without parentheses: polyethylene. Because adding one Saylor URL: http://www. saylor. org/books. Q: The process of making a polymer is called what? Choices: - fermentation - memorization - reaction - polymerization A:
polymerization
(Question)
Answer the following question given this paragraph: Q: What is stored and concentrated in the gallbladder? Choices: - calcium - oxygen - insulin - bile A:
(Answer)
bile
Ques: Answer the following question given this paragraph: 19.2 Cardiac Muscle and Electrical Activity The heart is regulated by both neural and endocrine control, yet it is capable of initiating its own action potential followed by muscular contraction. The conductive cells within the heart establish the heart rate and transmit it through the myocardium. The contractile cells contract and propel the blood. The normal path of transmission for the conductive cells is the sinoatrial (SA) node, internodal pathways, atrioventricular (AV) node, atrioventricular (AV) bundle of His, bundle branches, and Purkinje fibers. The action potential for the conductive cells consists of a prepotential phase with a slow influx of Na+ followed by a rapid influx of Ca2+ and outflux of K+. Contractile cells have an action potential with an extended plateau phase that results in an extended refractory period to allow complete contraction for the heart to pump blood effectively. Recognizable points on the ECG include the P wave that corresponds to atrial depolarization, the QRS complex that corresponds to ventricular depolarization, and the T wave that corresponds to ventricular repolarization. Q: The conductive cells within the heart establish the heart rate and transmit it through the what? Choices: - meiosis - conduction - neurons - myocardium A:
Ans: myocardium
(Q).
Answer the following question given this paragraph: The human genome has 23 pairs of chromosomes located in the nucleus of somatic cells. Each chromosome is composed of genes and other DNA wound around histones (proteins) into a tightly coiled molecule. Q: How many pairs of chromosomes are in the human genome? Choices: - 21 - 24 - 13 - 23 A:
(A).
23
Ques:Answer the following question given this paragraph: 5. Quartz is made of one silicon atom and two oxygen atoms. If you find a mineral and find that it is made of one silicon atom and one oxygen atom is it quartz?. Q: What mineral is made of one silicon atom and two oxygen atoms? Choices: - glass - pumice - cobalt - quartz A:

Ans:quartz
Ques:Answer the following question given this paragraph: These are plants that always produce offspring that look like the parent. By experimenting with true-breeding pea plants, Mendel avoided the appearance of unexpected traits in offspring that might occur if the plants were not true breeding. The garden pea also grows to maturity within one season, meaning that several generations could be evaluated over a relatively short time. Finally, large quantities of garden peas could be cultivated simultaneously, allowing Mendel to conclude that his results did not come about simply by chance. Mendel performed hybridizations, which involve mating two true-breeding individuals that have different traits. In the pea, which is naturally self-pollinating, this is done by manually transferring pollen from the anther of a mature pea plant of one variety to the stigma of a separate mature pea plant of the second variety. Plants used in first-generation crosses were called P, or parental generation, plants (Figure 8.3). Mendel collected the seeds produced by the P plants that resulted from each cross and grew them the following season. These offspring were called the F1, or the first filial (filial = daughter or son), generation. Once Mendel examined the characteristics in the F1 generation of plants, he allowed them to self-fertilize naturally. He then collected and grew the seeds from the F1 plants to produce the F2, or second filial, generation. Mendel's experiments extended beyond the F2 generation to the F3 generation, F4 generation, and so on, but it was the ratio of characteristics in the P, F1, and F2 generations that were the most intriguing and became the basis of Mendel's postulates. Q: In his work with pea plants, mendel performed what, which involves mating two true-breeding individuals that have different traits? Choices: - cross-breeding - assimilation - mutations - hybridization A:

Ans:
hybridization