Ecology - General Questions and Answers

Below is a generalized cast of Australopithecus afarensis cranium as there are many specimens Mark all that apply below My What large molars you have but not as large as Paranthropus below O My What a large brow ridge you have My What an orthagnathic faco com

Here is our probable hominin Ardipithecus ramidus cranium from Ethiopia The cranium itself it not particularly large maybe about 6 7 inches front to back Ardipithecus ramidus 2501 1rp96 1 cranium by RLA Archaeology on Sketchfab The foramen magnum is only partially present on this specimen areas in grey are reconstruction whereas textured brown represents actual fossil The cranium of Ardi doesn t really illustrate all the mosaic evolution in the post crania bones from the neck down The canines are thought to be less sexually dimorphic than that of chimpanzees which is one of the reasons some researchers think it may be on our lineage

Life History Theory posits that the timing and duration of the stages and phases of life are ADAPTATIONS and thus shaped by Mark all that apply O evolution chimpanzees genetic drift gene flow culture natural selection

What is the beta diversity of the following ecosystem A B C GIH E D C F B J CA BK G

2 What are some of the required postings for DMEPOS accreditation a Licenses and Certificates b HIPAA Poster c Pharmacy Hours of Operation Od All of the above

Inactivate nucleic acids Inhibit cell wall synthesis Inhibit enzymatic function and decrease pH Denature proteins Question 9 0 5 Which antibiotic would the doctor NOT prescribe to a patient with an infection caused by the bacteria growing on this plate

MRSA has developed a narrow resistance to antibiotics O True O False

O Narrow spectrum activity against gram negative bacteria O Broad spectrum activity against gram positive bacteria O Narrow spectrum activity against gram positive bacteria Question 14 What portion of the penicillin molecule disturbs the biosynthesis of the peptidoglycan O alpha lactam ring 0 5 pts Obeta lactam ring

What are the names of some chemicals that target bacterial DNA synthesis Mark all that apply Penicillin Bacitracin Ciprofloxacin Polymyxins Question 17 0 5 p

Which of the following antibiotic resistance metabolisms prevents the accumulation of penicillin beta lactams Efflux pump fluoroquinolones aminoglycosides tetracyclines B lactams macrolides Inactivation of enzymes B lactams aminoglycosides macrolides rifamycins Source OpenStax Microbiology B O Inactivation of enzymes Target modification O Blocking 31 FLICK Blocked penetration B lactams tetracyclines fluoroquinolones Target modification fluoroquinolones rifamycins vancomycin B lactams macrolides aminoglycosides

Source BiologyLibreText B O Pathogenicity values Antibiotic diffusion rates

Mihaela is listening to a concert on her iPad The sound of the singer s voice is low pitched which means that the

What are the differences between the roles of LDL and HDL Lipids and Atherosclerosis p 757 in the textbook Check all that apply LDL carries cholesterol from tissues to the kidney where it is converted to bile and excreted LDL carries cholesterol from the liver to tissues LDL carries cholate from the liver to tissues HDL carries cholate from tissues to the liver where it is converted to bile and excreted HDL carries cholesterol from tissues to the liver where it is converted to bile and excreted O HDL carries cholesterol from the kidney to tissues

Which of the following is an example of a nonrenewable resource O A B C D Solar and wind energy Oxygen used for respiration Carbon dioxide used for photosynthesis Fossil fuels

Over the last few decades scientists have noticed that lobsters which obtain heat from the environment rather than generating it themselves are moving north at a rate of six kilometers per year What is the best explanation based on these observations O Lobsters are adapting to cooler temperatures O Lobsters are looking for mates in northern regions O Lobsters can only reproduce in regions closer to the poles O Lobsters prefer warmer regions early in their life cycles Question 6 Multiple Choice Worth 3 points 03 02 LC An isolated system is best characterized as a system in which O Energy can freely enter and leave but matter cannot O Matter and energy can freely enter and leave O Matter can freely enter and leave but energy cannot

Ribosomes that do not anchor on the surface of the rough endoplasmic reticulum during translation most probably have a signal peptidase error have a defect in ribosomal proteins that allow attachment to the surface are made of 3 subunits are synthesizing cytoplasmic proteins

Listen point Which of the following is FALSE with respect to the use of sulfate by marine archaeal and bacterial groups a Oxidized sulfur containing molecules have redox potentials lower than those of the nitrogen series b Sulfate and sulfite can receive electrons from hydrocarbons c Sulfate reducing archaea and bacteria are widespread in the ocean Oxidized sulfur molecules such as sulfate and sulfite serve as electron acceptors d undant than chloride in the ocean

Electron Transport Chain H NADH Dehyrogenase H H Restor NADH H NAD Electron donor 78967k S Dept Biol Penn State 2002 H H Carrier Proteins H H 2 H 2O Intermembrane Space Increased potential across the inner mitochondrial membrane Decreased potential across the inner mitochondrial membrane A decrease in ATP synthesis through oxidative phosphorylation An increase in ATP synthesis through oxidative phosphorylation H H H H H H H O ATP Synthase 1888 H H H ADP PI ATP Mitochondrial Matrix In 1982 seven people in Chicago died as a result of taking Tylenol that had been laced with cyanide which binds to the protein cyt c in the Electron Transport Chain and stops the transfer of electrons to oxygen Which of these effects would you expect to see in the mitochondria of the individuals who died in this event select all that apply

Question 14 In the Krebs cycle the oxidized electrons from acetyl CoA leave the cycle via carbon dioxide only NADH and FADH2 ATP only NADH only

Question 12 What do both glycolysis and fermentation have in common They both require oxygen They both produce ATP They both require an input of NAD O They both involve oxidation reduction reactions

To sustain high rates of glycolysis under anaerobic conditions cells require functioning mitochondria oxygen NAD oxidative phosphorylation of ATP

Free energy Reactants Progress of the reaction Which of the following is true of this reaction Products It is spontaneous exergonic and has a AG It is spontaneous exergonic and has a AG It is nonspontaneous exergonic and has a AG O It is spontaneous endergonic and has a AG

6 Describe the behavior of chromosomes through both me lotic divisions

Effective communication is key to increasing awareness of your brand products and services Digital communication has become increasingly important Social media email newsletters websites digital publications Big emphasis on analytics measurement and data Speed flexibility and accuracy are important Fun and rewarding field At a university college institute we re promoting research projects and academic programs

Base your answer to this question on the proclamation below and on your knowledge of social studies Article 1 General Toussaint and General Christophe are outlawed every good citizen is commanded to seize them and to treat them as rebels to the French Republic Leclerc Saint Domingue proclamation 1802 Based on this 1802 French proclamation the French government reacted to the Haitian Revolution by 1 2 3 4 accepting Haitian demands to end slavery and oppression encouraging Haitians to rebel against French rule ordering the capture of Haitian revolutionary leaders agreeing to give Haitians all the rights

more than one protein one product that is alternatively spliced exclusively eukaryotic proteins multiple cis elements

10 Discuss the limitations of enacting fiscal policy during a recession

9 Compare and contrast demand pull and cost push inflation

10 Discuss the limitations of enacting fiscal policy during a recession

4 Explain why the short run aggregate supply curve is upward sloping

1 Define aggregate demand and identify its four sources

1 Define aggregate demand and identify its four sources

DNA polymerase III can only extend the new strand from the 5 to the 3 end What does this mean Mark all that apply The RNA primer provides the 5 carbon for DNA polymerase III to continue with the addition of complementary bases The DNA polymerase III reads the complementary strand and adds from carbon 5 to carbon 3 on the deoxyribose sugar The RNA primer provides the 3 carbon for DNA polymerase III to continue with the addition of complementary bases

Primates tend to Mark all that apply have larger brains for their body size than other mammals be arboreal eat mostly meat and animal protein have long childhoods live in groups O give birth to multiples litters

When we determine the evolutionary relationship between different primates we use their physical traits If some of those primates are have fully enclosed eye orbits full post orbital wall and some of them don t then this would be considered a shared derived trait useful for understanding evolutionary relationships a unique trait a convergent trait O a homologous or ancestral trait not useful here

G AUG 5 AGAATTTTTTTGAGTAGG 3 5 CCHACUCAL GUU GUC GUA GUG 5 GGATGAGTTTTTTTATCA 3 ACG GCU GCC Val GCA GCG AUG Met or Start UAG UAA and UGA Stop Ala AAG GAU GAC GAA GAG ICC 31 Lys Asp Here is the amino acids sequence for a short piece of a protein Glu AGG GGU GGC GGA GGG Arg Gly Pro Thr Gln Lys Asn Ser Which of the following is the DNA TEMPLATE strand used to produce the mRNA that encodes this protein sequence GUCAK nd Dept Biol Penn State 2002

Can you please make a question about Eukaryotic Initiation step 6 in your own words

3 Why are introns considered beneficial if they are spliced out of the RNA transcript

2 What are some similarities and differences that you noticed between transcription and replication

1 Why is transcription the first step in gene expression

Erythromycin Amoxicillin Classic Acid Which drug would be preferred for a patient with an E coli infection Which drug would be preferred for a patient with an S pyogenes infection Which drugs have no effect on the bacteria on the plate What is the name of the halo around drugs like Tetracycline and Gentamicin Optochin Choose Penicillin Streptomycin Choose Lawn of bacteria Vancomycin Bacitracin Optochin and Penicillin None of these because the drugs definitely do not affect S pyogene Vancomycin Bacitracin Erythromycin and Penicillin None of these because the lawn of bacteria is only for E coli Zone of inhibition Diameter of the drug disk Trimethoprim Sulfamethoxazole

Erythromycin Amoxicillin Clavulanic Acid Which drug would be preferred for a patient with an E coli infection Which drug would be preferred for a patient with an S pyogenes infection Which drugs have no effect on the bacteria on the plate What is the name of the halo around drugs like Tetracycline and Fal Optochin Penicillin Streptomycin Choose Choose Lawn of bacteria Vancomycin Bacitracin Optochin and Penicillin None of these because the drugs definitely do not affect S pyogene Vancomycin Bacitracin Erythromycin and Penicillin None of these because the lawn of bacteria is only for E coli Zone of inhibition Diameter of the drug disk Trimethoprim Sulfamethoxazole

Use the following diagram to match the questions to the correct answers Oxidation Fermentation Test Procedure Source Biolife E Which test supports positive facultative anaerobic utilization of dextrose Which test tube is negative for fermentation of dextrose Which test tube pair is indicative of non saccharolytic capabilities What pH reagent is added Choose Choose Green tube with oil and blue tube without oil Bromothymol blue Phenol Red Methyl Red Green tube with oil Yellow O F tube with and w o oil Yellow O F tube without oil only oose

If you have a series of PR sugar fermentation test tube results after proper incubation what would be the interpretation for each of the following observations Match the questions to the correct answers PR G is yellow and has a large bubble in the Durham tube PR L is red and has no bubbles in the Durham tube PR S is yellow and had no bubbles in the Durham tube Choose Choose Bacteria ferment glucose to produce acid and gas Bacteria ferment sugars to produce acid but it does not produce gas Bacteria do not ferment lactose at all Bacteria ferment sucrose to produce acid but it does not produce ga Bacteria do not ferment lactose but they may produce gas eventually

What is the first step to unknown identification when you receive the slant Choose the best answer Aseptically perform a gram stain from the unknown culture Then use a sterile cotton swab to inoculate a NA plate O Aseptically inoculate a sterile slant and broth from the unknown culture I may also do a gram stain O Aseptically streak a sterile NA plate using the unknown culture I may use this NA plate to do a gram stain on the same day as long as I use an isolated colony O Aseptically use a sterile slant to inoculate the unknown culture I may also do a gram stain

Why do we need to succeed in plate streaking in microbiology Choose all the answers that apply plate streaking prevents you from separating a mixed culture of organisms plate streaking gives you isolated colonies plate streaking allows you to identify culture contaminants plate streaking allows you to identify colony characteristics plate streaking allows you to separate a mixed culture of organisms plate streaking gives you isolated colonies like culture slants plate streaking allows you to test with differential media using pure cultures

6 Explain how the treasury and the central bank stabilize an unstable private economy using Keynesian model Y C I G

12 Carrying capacity means The maximum number of people the environment can contain without degradation b The ability of a fault to hold stress C Population momentum d Indirect result of exponential growth 13 The earthquake focus is a Where brittle deformation occurs b Another term for the hypocenter C Where epicenter is located above this point on the surface d All the above a 14 Deep focused earthquakes only occur at a Benioff zones at subduction plate boundaries b At powerful intra plate earthquakes Divergent plate boundaries in the ocean C d Thrust faulting in mountain ranges 15 The plate tectonic setting most commonly associated with powerful explosive Plinian a eruptions would be Rift zones with decompressional melting b Subduction zones c Transform plate boundaries as shown in the movie Volcano d None of the above 16 A Ghost Forest is a A bad Halloween movie b A drowned forest from subsidence c A forest destroyed by volcanic eruption as with Mt St Helens d A forest destroyed with major flooding from a hurricane 7 Hydraulic chilling means a People hanging out at a hot springs b Water in soil freezing to ice C Permafrost d Cooling a lava flow with sea water

A wild type allele is the most common allele for a gene in a population expressed in the heterozygous state expressed only in the homozygous state always beneficial to the organism always completely dominant

You are studying two genes that are located on the same chromosome They are located 55 map units apart How will the alleles of these genes behave in a dihybrid cross They will appear to segregate independently as if they are located on different chromosomes This cannot be adequately answered without knowing the recombination frequency They will assort together because they are linked Question 15 0 5 pts