Biological Classification Questions and Answers

In a negative stain... a. Only bacteria with negative charges on their surface will be stained b. Only basic stains are used c. the organism remains colorless and only the background is stained d. only acidic stains are used e. c and d

A mordant is used to increase the affinity of the primary stain for the bacteria. What is the mordant used in Acid-fast Stain? lodine methylene blue acid-alcohol acetone-alcohol heat

You observe no green ovals, only pink cells, after a correctly performed endospore stain. What would you conclude? Bacteria form endospores Bacteria do not form endospores Bacteria are Gram-positive and, thus, they do not form endospores Bacteria are Gram-negative and form endospores

A facultative halophile would be able to grow at all the following conditions EXCEPT... TSA without NaCl TSA with 0.85% NaCl OTSA with 5% NaCl TSA with 10% NaCl Any of the above media will allow the growth of a facultative halophile

In the highlighted section of 16 Paragraph 5, de Vaca says he would have hailed death with delight rather than do what? A. see so many around him in such a condition B. continue to endure the intense cold and hunger C. face a sacrificial death at the hands of the Native Americans from "La Relacion" by Alvar Nunez Cabeza de Vaca 1- THIS TRANSLATED EXCERPT OF CABEZA DE VACA'S ACCOUNT TELLS OF THE BARGES IN DE VACA'S PARTY BECOMING SEPARATED AND OF DEVACA'S BARGE BEING SHIPWRECKED ON GALVESTON ISLAND, THE ACCOUNT TELLS OF THEIR MANY SUFFERINGS AND PRIVATIONS AND OF THEIR ENCOUNTER WITH THE LOCAL NATIVE AMERICANS. 2-SINKING AND RESCUE Seeing his determination, I took to my own oar and the

If you were writing about how de Vaca's experiences with 14 the Native Americans may have influenced him to treat them humanely later in his life, which passage below would give good supporting detail? (See the indicated paragraphs to check the entire reference.) A. Par 12: They "brought us plenty of fish and some roots...taken out of the water with much trouble" B. Par 3: "I went after the other barge, which was out at sea and waited for me," C. Par 5: "After the skipper had taken the barge under his control, I went to rest"

An organism that is fill in blank of many cells, while an organism that is fill in blank is made is made of only one cell

Based on your understanding of the "Purple Earth Hypothesis", which of the following statements is true about it? a) The first photosynthesizing Archaeons used Retinal instead of Chlorophyl. b) Photosynthesizing Archaeons absorbed light in the green part of the spectrum and used this light to drive photosynthesis. c) Modern photosynthesizers evolved in a world where the vast majority of other organisms monopolized green light. d) Purple Halobacteria would have produced oxygen as a byproduct of photosynthesis. e) All of a, b, & c are correct. f) Only b & c are correct g) Only a & c are correct h) Only a & d are correct i) All of a, b, c, and d are correct

If the atomic number of an element is 10 then which of the following is (are) true about this element? A. has 8 electrons in its outermost shell B. has a total number of 10 electrons C. has a total of two electron shells D. all the above

Protein misfolding can cause fatal diseases. An example is the misfolded proteins called prions. Prions can cause neurode generative diseases in both humans and animals by 1. forming an infectious viral particle and spreading from cell to cell 2. None of the answer is correct 3. converting non-living virons into living virions that can spread from cell to cell 4. converting other structurally normal proteins to misfold proteins, which spread rapidly from cell to cell

1.Exactly 100 bacteria with a generation time of 30 minutes are introduced into fresh sterile broth at 8:00 AM and maintained at optimum incubation temperature throughout the day. How many bacteria are present at 11:00 AM? How many generations will take place by 2:00 PM? [3.0]

Which of these occurred in response to the existence of corporate monopolies and the inequality of wealth during the Gilded Age? rise of labor unions use of laissez-faire policy creation of yellow-dog contracts expansion of the temperance movement

When it is said that microbes are ubiquitous, it means that a. microbes in the environment are harmful. b. the immediate environment is sterile. c. only dead microbes are present. d. microbes are found virtually everywhere.

One thing that E. coli and other bacteria have in common with eukaryotes is the presence of... A. O nuclei B.chloroplasts C.O mitochondria D. DNA

As a professional caregiver, you have a responsibility to I. try to get all children in your care to develop socially and emotionally at the same rate. II. be sensitive to each individual child's level of social and emotional development. III.interact with children in such a way that you meet their emotional needs. IV. understand the ways in which children develop emotionally and socially. A. II, III, IV B. I, IV C. II, III D. I, II, III, IV

The most important thing caregivers can do for toddlers is to A. provide a stimulating learning environment. B. provide interesting and challenging play equipment. C. respect the toddler as a worthwhile person. D. provide strict discipline.

The best way to avoid toddlers' resistance in the toilet learning process is to A begin putting them on the potty at 18 months of age. B. always put cotton underpants on them so they are aware of being wet. C. avoid making unreasonable demands on them. D. praise them repeatedly and generously every time they use the potty.

Tears are considered to be part of the: Note. Check all that apply, but only those choices that apply. A. nonspecific defenses B. specific defenses C. third line of defense D. second line of defense E. first line of defense

Name some of the factors that could cause older diseases to show an increase in the number of cases.

Choose Europe, North Africa, or Southwest Asia as the best region to contain Egypt. Write a paragraph explaining your choice. Remember to explain how formal, functional, and perceptual regions influenced your choice. Give specific details to support your explanation. (10 points)

A healthcare provider saw that 48 % percent of their members received their flu shot in a recent year. The healthcare provider tried a new advertising strategy in the following year, and they took a sample of members to test if the proportion who received their flu shot had changed. What are appropriate hypotheses for their significance test? Choose 1 answer: A.Ho: p= 48% H₁ :p>48% (where p is the proportion of members who received the flu shot) B.Ho : p = 48% H₁ :p ≠48% (where p is the proportion of members who received the flu shot) C.Ho: μ=48% H₂ : μ> 48% (where is the average number of members who received the flu shot) D.Ho: μ=48% H₂ : μ≠48% (where is the average number of members who received the flu shot)

are similar to lidocaine but are slightly different. When the structure of a drug is changed the biological activity can be changed to make it better or worse. What parts of the structure of lidocaine can be easily altered to change its biological activity? Think about the molecules that were used in the lidocaine synthesis. Keep the same functional groups but change the substituents. Cite any references for lidocaine derivatives that you find.

Identify three functional factors that affect Egypt's regionalization. These are the connections based around central points. Find a functional factor that connects Egypt to Africa, to Europe, and to Southwest Asia.

Identify three perceptual factors that affect Egypt's regionalization. These are the ways that people think and act about a region - they can be very powerful. Find a perceptual factor that connects Egypt to Africa, to Europe, and to Southwest Asia.

What can be inferred from the following excerpt taken from the essay "Simple Song: Virgnia Woolf and Music" by Emma Sutton? "In her first novel, Voyage Out, her heroine plays a Beethoven piano sonata usually perceived as unattainable for women, augmenting the references to her growing feminism." It contains factual information. It is an extended definition. It is a testimony.

Both aerotolerant anaerobes and facultative anaerobes can live in places that have oxygen or no oxygen. Name one characteristic that makes them different from each other?

The ultimate aim of any sociological theory is to: provide an explanation of people's past behaviors increase the prestige of the researcher reveal the unfairness in social life be able to make accurate predictions about people's behavior in the future

Which of the following list of characteristics best describes the appearance of a zebra mussel? A.) Striped pattern shell, some have light or dark colored shells with little or no stripes, up to 2 inches in length, flattened underside of shell. B.) All have a striped pattern shell, up to 10 inches in length, rounded underside of shell. C.) Striped pattern shell, some have light or dark colored shells with little or no stripes, up to 1 inch in length, square-shaped shell.

to the figure of the eight chromatids of two pairs of replicated homologous chromosomes: a pair of large sub-metacentric homologues (numbered 1-4) and a ir of smaller metacentric homologues (numbered 5-8). hich ONE gives the number of bivalents these chromosomes would make if they were engaged in the first division of meiosis? A. two bivalents B. four bivalents C. eight bivalents D. sixteen bivalents E. thirty-two bivalents

The statement below is in two parts: (Part 1) and (Part 2). Each part is either true/correct or false/incorrect. Which ONE of the choices (A through D) applies to the statement? (Part 1) The structure of mitotic chromosomes appears to have an inherent bilateral (mirror-image) symmetry, (Part 2) and consequently, many have interpreted this as an important feature ensuring that attachment of sister kinetochores to opposite spindle poles can be made efficiently because they are positioned to face (by 180°) opposite directions. A. (Part 1) is true/correct; (Part 2) is true/correct B. (Part 1) is true/correct; (Part 2) is false/incorrect C. (Part 1) is false/incorrect; (Part 2) is true/correct D. (Part 1) is false/incorrect; (Part 2) is false/incorrect

Identify the statement that is FALSE. a) The employer cannot petition OSHA at the state or federal level for a variance. b) If an employer is convicted of a willful violation of a standard that has resulted in the death of an employee, the offense is punishable by a court- imposed fine or by imprisonment for up to six months, or both. c) The OSH Act addressed the need to help reduce the incidence of work- related injuries, illnesses, and deaths. d) The purpose and organization of NIOSH is to research toxicity levels and human tolerance levels of hazardous substances

Found in Domain Deemed bacteria because they can be found anywhere, they come in 3 shapes. They are often associated with there are more helpful than harmful bacteria in this domain, as they assist in fixing in plants, making antibiotics, & even food.

Which distinction below would a dichotomous key not identify? Blue or green Circle or square Purple or triangle Tall or short

Which is not a way that ancient people classified plants and animals? By using binomial nomenclature By taste By use As beneficial or poisonous

What was one of the ways that people of ancient times classified plants and animals? by use using a dichotomous key using genetic analysis by color

An organism that produces its food by photosynthesis must be placed in the Plantae kingdom may be placed in the Plantae kingdom must be placed in the Animalla kingdom may be placed in the Animalla kingdom

What were the Shang responsible for? The beginnings of equality among all people The power of the ruler limited by the people Strict rules on education the beginnings of social classes

Classify each reaction in glycolysis into as many of the following categories as apply: oxidoreductase, isomerase, ligase, hydrolase, transferase, lyase

One way that scientists group bacteria is by Their cell wall and the color they become during a staining technique Whether or not they have a flagellum The materials in their cell wall

6- An X-linked dominant allele causes hypophosphatemia in humans. A heterozygous woman with hypophosphatemia marries a normal man. A- What is the probability that this couple will have three daughters and two sons? B- What is the probability that this couple will have five children in the order: F, M, M, F, F?

Beginning with the start codon, which amino acids, in order, are coded for by this section of mRNA? Consult the codon table provided if necessary. serine, aspartic acid, glycine, leucine methionine, glycine, phenylalanine methionine, valine, glycine, phenylalanine threonine, methionine, glycine

11. Compare and contrast the cell walls of Gram-positive and Gram-negative bacteria. gram-positive: no outer membrane, two 'layer', plasma membrane and thick peptidoglycan layer, contain teichoic and lipoteichoic acids, appear purple after gram stain. gram-negative : outer membrane, three 'layer', plasma membrane, thin layer of peptidoglycan, and outer membrane, outer membrane has phospholipids, protein and lipopolysacchride (LPS), appear pink after gram stain. similar : plasma membrane, peptidoglycan layer, protection of the bacteria.

Which of the following telephone calls should a technician NOT handle? Patient confirming that their prescription is ready Patient requesting a refill on an existing prescription Nurse calling in a change of directions Patient calling to check the price of a medication

Since 1735, the Linnaean classification system has been the basic system for all taxonomy in biology. Which statement best explains the reason for changing how organisms are classified today? New information about the genetics of species is being discovered. There are more organisms today than there were in the past. Organisms are evolving at a faster rate than in the past. More diverse and complex organisms are being discovered.

A researcher claims that different metabolic pathways allow bacteria to use different molecules as sources of matter and energy. Which of the following statements best helps justify the researcher's claim by providing a relevant example? a. Rhizobia bacteria form close associations with the roots of bean plants. b. E. coli bacteria reproduce in liquid media containing either glucose or galactose. c. The antibiotic rifampicin inhibits the growth of some bacterial strains but not of others. d. Some viruses that infect bacteria reproduce by either the lysogenic cycle or the lytic cycle.

Only bacteria are found as part of healthy skin microbiota. Viruses and fungi are never found on the skin of a healthy human as part of the normal skin microbiome. A True B) False

Discuss the similarities and differences between animal and bacterial virus multiplication. (Words/concepts to include in your answer: attachment, adsorption, penetration, uncoating, synthesis, assembly, persistence, lysogeny, latency, release)

Which of the following is the least inclusive classification group? phylum genus species class

Two organisms that are in the same order will also be in the same species. genus. family. class.

Describe how MALDI-TOF mass spectrometry can be used to identify a bacterial species. What's a disadvantage of this method?