Back to Questions
Want to know:
The PRIZM segmentation scheme is basaed largely on geographic variables
Get a detailed, AI-powered explanation for this question and thousands more on StudyFetch.
Get the Answer for FreeHow StudyFetch Helps You Master This Topic
AI-Powered Answers
Get instant, detailed explanations powered by AI that understands your course material.
Deep Understanding
Go beyond surface-level answers with step-by-step breakdowns and examples.
Personalized Learning
Spark.E adapts to your learning style and helps you connect ideas.
Practice & Test
Turn any question into flashcards, quizzes, and practice tests to solidify your knowledge.
Explore More Questions
- Arsenic is a toxic element found in both aquatic and terrestrial environments. Scientists have found genes that allow bacteria to remove arsenic from their cytoplasm. Arsenic enters cells as arsenate that must be converted to arsenite to leave cells. Figure 1 provides a summary of the arsenic resistance genes found in the operons of three different bacteria. E. coli R773R773 is found in environments with low arsenic levels. Herminiimonas arsenicoxydans and Ochrobactrum tritici are both found in arsenic‑rich environments.Figure 1. Operons found in three selected bacteria for arsenic removalResearchers claim that bacteria that live in environments heavily contaminated with arsenic are more efficient at processing arsenic into arsenite and removing this toxin from their cells. Justify this claim based on the evidence shown in Figure 1.AThere are multiple operons controlling the production of proteins that process and remove arsenite from cells in both H. arsenicoxydans and O. tritici. In contrast, E. coli has only one operon devoted to arsenic removal.BBoth H. arsenicoxydans and O. tritici contain the arsR gene that codes for a repressor that turns on the operon to eliminate arsenite from the cell.CBoth O. tritici and E. coli contain the arsD gene, which codes for a protein that helps remove arsenite from the cell.DBoth H. arsenicoxydans and O. tritici. have more arsenic resistance genes than has E. coli.
- 7th president, famous for changes to electoral process, Nullification Crisis, Trail of Tears, vetoing national bank of United States
- En 75‐årig man söker på vårdcentralen p.g.a. tilltagande andfåddhet och återkommande produktiv hosta. Han har hypertoni samt tablettbehandlad diabetes mellitus och hyperlipidemi och röker sedan 50 år tillbaka. Aktuellt: BT 150/90 mmHg, AF 15/min, saturation 91%, HF 70/min, temp 36,8. Cor: auskulteras med regelbunden rytm och antytt systoliskt blåsljud. Pulm: auskulteras med förlängd expirium samt ronki. F.ö. status ua.Med tanke på den mest sannolika diagnosen, vilken undersökning bör du beställa för att gå vidare i utredningen? Endast ett svar ska markeras.- Arbetsprov- Ekokardiografi- Lungröntgen- Lungscintigrafi- Spirometri1 p