The Living World Questions and Answers

If two otherwise dissimilar organisms share similar genomic DNA, to what would you attribute.the genomic similarity? The shared genes have evolved a number of times and have no phylogenetic significance. The shared genes are ancient and probably no longer function within the altered physiological states of modern organisms. O DNA is not a reliable basis for phylogenetic decisions. O The shared genes developed early in evolution and are likely to be applicable to a wide diversity of organisms. O The two taxa are more closely related than formerly believed because they may share a common ancestor

Terrestrial snails perform digestion through the O use of a crystalline style for the release of digestive enzymes into a mucoid mass of food O incorporation of food into a mucoid mass called a protostyle O filtration of food by the mantle cavity O secretion of digestive enzymes into the forgut followed by absorption of nutrients by the hindgut

Put the following in the correct order when a crustacean undergoes ecdysis 15234 15432 15324 12345 13452

In a tide pool, a student encounters an organism with: a hard outer covering that contains calcium carbonate, an open circulatory system, and gills. The organism could potentially be a crustacean or a bivalve. Which structure listed below would allow for the most certain identification? the presence of a mantle none of these options could be used for identification the presence of a coelom the presence of a complete digestive tract the presence of a heart

The terms "dorsal" and "oral" are synonyms. O True O False

Ecdysis is disintegration of the ectoderm. the feeding tentacles of the Ecdysozoa. development of the ectoderm layer in the gastrula. molting of the exoskeleton. development of the epidermis from the ectoderm.

2. The main function of the bacteria cell wall is.... A. to provide a particular shape to bacteria such as spherical for cocci and rod-like for bacilli B. to be the site of action of some antibiotics C. to protect bacteria from antibiotics D. to prevent osmotic lysis E. All of the above

1. Which is the correct scientific name for the bacteria that cause bubonic and pneumonic plague? A. Yersinia pestis B. Yersinia Pestis (underlined) C. Yersinia pestis D. Yersinia pestis (in Italics) E. Pestis (underlined)

The highest resolving power or resolution of the compound light microscope is O 200 nm O 200 micrometers O 200 meters O 100 cm O 200 mm

Which type of microscope would you use to see ribosomes inside a cell? A. A compound light microscope B. A scanning electron microscope C. A transmission electron microscope D. Fluorescence microscope E. Any of the above

Which type of microscope would you use to study the surface and shape of a virus? O SEM O TEM O brightfield microscope O darkfield microscope O Any of the above

6. Which discovery marks the beginning of Microbiology? A. Hook's observation that living things are composed of cells B. Pasteur's demonstration that microbes are present in air and liquids C. van Leeuwenhoek's observations of live microorganisms for the first time D. Spallanzani's demonstration that microorganisms did not develop spontaneously from the fluid E. All of the above

8. Pasteur observed in the microscope that good beer has By the good beer, he prevented that it gets spoiled. A. Yeast; bacteria; heating O B. Bacteria; yeast; heating OC. Yeast; bacteria; refrigerating OD. Yeast; viruses; heating O E. Good taste; bad taste; filtering while spoiled beer has

1. Microbiology is the study of microbes or microorganisms which are... O Organisms that cause a disease O Organisms that can only be seen by using a microscope O Complex multicellular organisms O Always either bacteria or viruses O All of the above

Which of the following strategies can reduce urban sprawl? A. Creating a green belt B. Building long city blocks C. Creating expensive housing in the city D. Building high-rise homes and offices

Barrier islands do not really protect the coastline from powerful storms like hurricanes. True False

Fetch is none of these the circular pattern made by water particles when a wave passes the distance between the trough of a wave and the still water level a method of shoreline erosion control

Sea level has changed 23 times during the history of the Earth. True False

Inhibitors of Cell Wall Synthesis Ethambutol Inhibits incorporation of mycolic acid into the cell wall Isoniazid (INH) Inhibits the mycolic acid synthesis in mycobacteria Used together to treat tuberculosis (synergism) Would these drugs be effective against non-mycobacteria?

Which one of the following best describes Lysol? bactericidal agent sanitizing agent sterilizing agent bacteriostatic agent

"You need to understand scientific research only if you plan to become an scientist." Discuss why this statement is flat out wrong.

Perform the following calculation. How many significant figures are in your final answer? Report your answer to the correct number of significant figures. 1.90 3.0+ 2.657

Minerals are classified into groups primarily on a basis of O hardness; hard, soft, and medium are the three primary classes O number of cleavage sets present O chemistry, specifically the cations within the chemical formula O chemistry, specifically the anions within the chemical formula

Which of the following minerals is softest? O calcite O feldspar O corundum O quartz O augite

Which of the following is a sedimentary rock? diorite phyllite slate andesite flint hornfels gabbro

The asthenosphere is hot and weak hot and strong cool and strong cool and weak

How old are the oldest rocks in the oceanic crust? 400 million years 300 million years 200 million years 500 million years. 100 million years

Question 16 If global consumption remains the same, Earth will run out of conventional oil resources about 2160 2120 2200 2080

During endochondrial ossification O bone replaces a cartilage model. O bone matrix is deposited within a membrane. O bone matrix is slowlly secreted on the outside surface of a long bone. O bone matrix is slowly digested by osteoclasts.

Which is more superficial? O scalp O skull

In this lab, you will simulate birds with three different beaks. After watching the birds feed, you will remove fruit to simulate a change in the environment. What question are you answering by doing this observation? Write it by filling in the blanks below. What is the effect of... ...on...

Griffiths experiment showed that heat killed S strain of Streptococcus pneumonia transferred DNA to live R strain and killed mice. This procedure of DNA transfer is know as: transformation transduction conjugation all of these

A 24 hour Bacillus subtilis culture is LESS susceptible to UV irradiation than 72 hour culture. True False

Gene transfer in bacteria by conjugation has the following characteristics: a majority of the donor genes are transferred Oit involves a plasmid O it depends on phage infection of the recipient cell O it can be carried out using free DNA extracted from the donor

Leukocidins that are toxic to WBCs usually produced by Streptococcus & Staphylococcus are examples of antiphagocytic factors True False

Which of the following best describes Germany in 1848, before the March Revolution? A. A single, unified kingdom ruled by a prime minister. B. A confederation of states, led by the Austrian Emperor. C. A territory under Russian control.

Bacteria that are resistant to penicillin and related antibiotics produce an enzyme called keratinase benzenase lactase penicillinase

Pasteurization is a sterilization procedure commonly used by the dairy industry. O True O False

radiation induces mutations because it causes abnormal bonds to form in the DNA X-ray gamma rays ultraviolet rays infrared

Those opposed to the Charter of 1814 were called A. liberals B. rationalists C. ultra-royalists

Bacterial growth that completely covers the surface of a broth tube is termed a pellicle. This implies that the bacteria and obligate anaerobes obligate aerobes facultative anaerobes aerotolerant anaerobes

Which term did the Communist Manifesto use to identify the working class (the "have- nots")? A. communists B. bourgeoisie C. proletarians D. utopians

Laissez-faire economics, or unregulated trade, is most closely associated with which ideology? A. socialism B. capitalism C. utilitarianism D. mercantilism

"The shorter, lighter clubs called Jori in India are believed to have developed independently from the battle mace described in ancient Sanskrit epics. Peacetime versions of jori, used by wrestlers - and eventually soldiers for training purposes, are mentioned in print for the first time in the twelfth-century text the Manasollasa and the thirteenth-century Malla-Purana, emphasizing the clubs' long association with masculinity and a kind of ascetic athleticism." What type of supporting information is used in this excerpt?

Being both Spanish and Native American, what social class was Jose Morelos from? A. Peninsulares B. Criollo C. Mulatto D. Mestizo

Which season is occurring in Earth's northern hemisphere when Earth's southern hemisphere is tilted toward the sun?

Dom Pedro, son of King John VI of Portugal, stayed in Brazil and was declared the newly the nation's first what? A. emperor B. president C. director

All of the following European powers aided the Greeks in their fight for independence EXCEPT which one? A. England B. Prussia C. France D. Russia

Which of the following was a Roundhead General during the English Civil War who set up a commonwealth and named himself Lord Protector? A. Charles I B. Oliver Cromwell C. James I D. Henry VIII

Which of the following best describes the idea of Divine Right? A. Monarchs are chosen by God. B. Monarchs are like God. C. Monarchs have divine status. D. Monarchs reject gods.