The Living World Questions and Answers

Which one of the following is a selective advantage of simple multicellularity over single-celled organisms? Multicellularity helps organisms enhance efficiency of reproduction. Multicellularity results in fundamental changes in metabolic processes. Multicellularity helps organisms utilize more food sources. Multicelluarity helps organisms avoid predation. Multicellularity helps an organism move about more efficiently.

The scientific name of two animals are Rattus rattus and Rattus norvegicus. Based on this information which of the following is (are) true A. animals belong to same genus B. animals belong to same species C. rattus and norvegicus refers to their species names D. both A and Care correct

In order for new species to arise, two populations must experience . Isolation and then reinforcement. Reinforcement and then isolation. Reinforcement by multiple attempts to reproduce followed by isolation. Isolation followed by competition for resources. Isolation, but then come back together and allowed to breed.

Which of these passages from "The Cactus" conveys an image of heroic admiration? A. Without protest, he allowed her to twine about his brow this spurious bay of Spanish scholarship. B. Trysdale's friend, the brother of the bride, stood at a sideboard complaining. C. On the table stood a singular-looking green plant in a red earthen jar.

A spring is compressed, resulting in its displacement to the right. What happens to the spring when it is released? The spring exerts a restoring force to the left and returns to its equilibrium position. The spring exerts a restoring force to the right and compresses even further. The spring exerts a restoring force to the left and stretches beyond its equilibrium position. The spring exerts a restoring force to the right and returns to its equilibrium position.

The following is an excerpt from a speech President Obama made in 2011, when describing the economic collapse of 2008: "But for most Americans, the basic bargain that made this country great has eroded. Long before the recession hit, hard work stopped paying off for too many people. Fewer and fewer of the folks who contributed to the success of our economy actually benefited from that success. Those at the very top grew wealthier from their incomes and their investments - wealthier than ever before. But everybody else struggled with costs that were growing and paychecks that weren't- and too many families found themselves racking up more and more debt just to keep up..... How does President Obama's description of the economy in 2008 compare to the description of America in 1890 presented in both the Populist Party platform and the speech by Mary Elizabeth Lease above? Is it similar or different? Cite textual evidence to support your claims.

Mitochondria are found in most eukaryotic cells and contain their own DNA and ribosomes that are similar to those typical of many prokaryotic cells. Which of the following statements is justified by these observations? A The mitochondrion is the only location in which eukaryotic cells can synthesize ATP. B An ancestral cell most likely engulfed an aerobic prokaryote in a relationship that proved beneficial for both cells. C Mitochondrial membranes provide abundant surface area for reactions because of the infoldings called cristae. D The mitochondrion plays a role in respiration but it also stores the cell's extra mRNA.

Which statement best describes a nucleus? The smallest structural and functional unit of an organism that can be said to be alive. A small compartment that includes a cytoplasm, a nucleus, and a cell membrane. A sac-like membrane that stores water. A compartment that contains DNA and regulates when genes are turned on and off.

A cell is treated with a drug that prevents the formation of new lysosomes. The cell continues to transcribe the genes that code for the hydrolytic enzymes that are normally found in lysosomes and continues to translate the mRNAs for those proteins on membrane-bound ribosomes. The hydrolytic enzymes are most likely to accumulate in which of the following cellular structures? A Nucleus B Mitochondrion C Smooth endoplasmic reticulum D Golgi complex

Cyanide binds to at least one molecule involved in producing ATP. If a cell is exposed to cyanide, most of the cyanide will be found within the A Mitochondria B Ribosomes C Peroxisomes D Lysosomes

What was the purpose of a company entering a trust? conserve natural resources equalize opportunities among businesses eliminate competition and decrease costs maximize profits and pay workers higher wages

Identify each of the following as a physical or chemical change. a. dew forming on a fern b. the growth of a dandelion c. rock being ground into powder by a moving glacier d. minerals dissolving into a local stream e. acid rain killing a balsam over time

Which of the following are ways to accomplish transfer of learning? Select all the correct options. a) Theory to practice b) Training to competition c) Skill to competition d) Skill to skill

Which of the following are characteristics of the critical period of development? Select all the correct options. a) Optimal development occurs in the presence of certain stimuli. b) It occurs late in development when aptitude with skills is important. c) Individuals are sensitive to environmental stimuli. d) Occurs once during development of a child.

For the following question choose the correct anatomical terms for the words printed in bold. A dancer will often bend and straighten his/her foot Abduction, adduction Dorsi flexion, plantar flexion O Flexion, extension Proximal, distal

You and your friend read a book about three animals that travel hundreds of miles to find their way back home. They face danger, illness, and injury, yet eventually arrive alive to greet their heartsick owners. Which of the following is the main idea of this book? Three animals on a journey Three animals with superpowers Three animals run away for an adventure Three animals risk their lives to return home

The self-extinction premise which centers the discussion in Chapter 1 of your course textbook is crucially dependent upon positive and negative feedback loops, and more specifically, whether the researcher in question believes one type of loop, or the other, is relatively stronger. Explain this statement.

Complete the following sentence: Diffusion is the movement of particles from concentration to a concentration until they are spread out.

The retention factor (Re) is the result of dividing the a) distance traveled by analyte and tap water only b) distance traveled by analyte by the distance traveled by solvent c) distance traveled by reducing sugar only d) None

Which of the following is a correct statement about the relationship between pH and the hydrogen ion concentration of a solution? A. There are no hydrogen ions present in a solution with a basic pH B. There are no hydrogen ions present in a solution with a neutral pH C. The concentration of hydrogen ions in a solution with a pH of 7.0 is 100 times as great as that in a solution with a pH of 9.0 D. The concentration of hydrogen ions in a solution with a pH of 5.0 is twice as great as that in a solution with a pH of 3.0 E. The concentration of hydrogen ions in a solution with a pH of 4.0 is 400 times as great as that in a solution with a pH of 1.0

The charged particles in the beams that Thomson studied came from atoms. As these particles moved away from their original atoms, they formed a visible beam. The current model of the atom includes protons, neutrons, and electrons. What is the best use of an atomic model to explain the charge of the particles in Thomson's beams? An atom's negative particles are surrounded by positive matter, so the positive particles are easier to remove. An atom's positive particles are surrounded by negative matter, so the negative particles are easier to remove. An atom's smaller negative particles are at a distance from the central positive particles, so the negative particles are easier to remove. An atom's larger positive particles are at a distance from the central negative particles, so the positive particles are easier to remove.

What is the magnification of the lowest powered objective lens in your microscope? What is the collar color of this objective lens? 4X; red 40X; yellow 100X; yellow" 40X; blue 10X; white 40X; red 4x; cream 100X; blue 10X; red 4X; blue 100X; cream 10X; yellow

What age group or groups do you think your personality is best suited to, and with whom you are most qualified to work? How do you modify your approach when working with different ages? Please provide examples of changes in your approach when working with students of different ages.

Toddlers' fears A. often stem from their limited information and incomplete understanding of the world. B. can be overcome more quickly if you insist that they try doing whatever they are afraid of. C. can be overcome if you simply tell them there is nothing to be afraid of. D. can be overcome by shaming or making fun of them.

is a comprehensive database management system (DBMS) that can be used to create a database; add, change, and delete data in a database; sort data in a database; retrieve data from the database; and create forms and reports using the data in a database. 1) Microsoft Excel 2) Microsoft Outlook 3) Microsoft Access 4) Microsoft OneNote

Calculating According to Christian tradition, the apostle Peter established a church in the city of Rome. What is the approximate straight-line distance in miles between Rome and Nazareth, the birthplace of Jesus?

To bring about change in your social interactions relating to an everyday experience you dislike, you must become aware of I.your own behaviors. II.how your behaviors have been guided by past experiences and future expectations. III.how your behaviors have contributed to the continuation of the situation you dislike. IV. how this experience is portrayed in books and movies. A. III, IV B. I, II, III C. I, III D. I, II, IV

Homer notices that his shower is covered in a strange green slime. Marge tells him that coconut juice will get rid of the green slime. Homer decides to check this out by spraying half the shower with coconut juice. He sprays the other half of the shower with water. After three days of "treatment" there is no change in the appearance of the green slime on either side of the shower. Identify the: 1.Control Group-Homer 2.Independent Variable- 3. Dependent Variable- 4.What should Homer's conclusion be? 5.How could Homer's experiment be improved?

Which of the following choices best describes the factors that are necessary for the development of independence? A. Assertiveness B. Assertiveness and resistance C. Rebelliousness D. Negativity, rebelliousness, resistance, and assertiveness

Based on what you have learned in this course, what are the major needs of children during the toddler period? Explain how you as a caregiver can help meet each of these needs.

The Gulf Stream is a current that carries water north along the eastern coast of the United States. Which of the following describes the flow of water in the Gulf Stream? A. Cool water is carried to warmer parts of the ocean. B. Warm water follows a path to join other warm water. C. Warm water is carried to cooler parts of the ocean. D. Cool water follows a path to join other cool water.

Developmental psychology has no major theory comparison theory foundational theory grand theory

You want to measure the effects of different amounts of oxygen on the rate of yeast growth by cell division. Independent variable: Dependent variable: Control group(s): Constants:

What does a child learn during the sensorimotor stage of cognitive development? How to symbolize objects with language or images. How to think logically about abstract propositions. How to differentiate him or herself from objects. How to think logically about objects and events.

One of the advantages of chorionic villus sampling (CVS) over amniocentesis is that CVS provides earlier results. poses lesser risk to the fetus. can never be lethal. samples amniotic fluid.

What do you call the application of skills, knowledge, and attitudes you already possess to new learning situations? Educational Growth Transfer of Learning Transfer of Skills Educational Development

theories are to nature as is to nurture. Ethology; evolutionary theory Information processing; biological Biological; behaviorism Cognitive; ethology

A human with a genotype of XXY or XXXY will be of which sex? Will this individual exhibit a disease syndrome and, if so, which one? male; Down syndrome male; Klinefelter syndrome female; Turner syndrome female; no syndrome male; no syndrome

Which of the following states that learning in one situation improves performance in another situation? Negative Transfer Analytical Thinking Critical Thinking Positive Transfer

The apple slices in Celine's lunch always turned brown by lunchtime. Celine's favorite cooking website said that pouring lemon juice on the apple slices would keep them from turning brown so quickly. Celine cut an apple into eight slices. She poured two tablespoons of lemon juice over four of the slices. She did not pour lemon juice over the other four. Every hour for three hours, Celine counted the number of apple slices that had turned brown. In this experiment, which were part of a control group? the plain apple slices the apple slices covered with lemon juice

The following diagram is of a cross section of a plant leaf. Use the diagram to answer the question. The main function associated with structure X is . Select one A. absorption of carbon dioxide B. release of carbon dioxide C. collection of light D. retention of water

What can be inferred about the writer from the following statement from the essay "On Pockets and Things" by A. G. Gardiner? "Yes, certainly madam, I am with you on the general question" The writer's intent toward society. The writer's intention is favoring a just cause The criticism of the writer against women

An electron photomicrograph of a newly discovered cell shows long projections with a basal body in the cell wall. What kind of projections are these? How might this cell behave in its environment because of the presence of this structure?

Name the umbrella agency that oversees the entire Executive Branch bureaucracy? The West Wing; Executive Office of the President; Oval Office;

Which of the following definitions is correct: Hyperpolarized - when the inside of the cell becomes more positive than the outside of the cell Repolarized - the cell becomes more negative again in attempt to reach resting membrane potential after it has been depolarized Polarized - a membrane that has changed its protein composition Depolarized - when the inside of the cell becomes more negative than the outside of the cell

Which of the following is true about scientific theories? Scientific theories can be revised, changed, or even rejected. New research is often performed to learn more about existing scientific theories. Scientific theories are considered to be facts and cannot be modified. New scientific theories can be formed to explain new phenomena.

Craig performed a side-by-side Gram satin of a known Gram positive and known Gram negative organism. Unfortunately, he forgot to do iodine step. When he observed his completed slide under oil immersion, what do you think he saw?

Andrew Jackson opposed the Second Bank of the United States and after the election of 1832 he had all federal funds removed from the National Bank and put where? Fort Knox North Carolina State Employees Credit Union Pet Banks White House

Ammonia (NH3) is an example of a Brønsted-Lowry Base. i. Define the Brønsted-Lowry acid-base theory. ii. What's the pH of a solution of ammonia that has a concentration of 0.335 M? The Kb of ammonia is 1.8 × 10-5.

How normal p53 gene help in inhibiting the development of cancer A) Cause cell with much DNA to die B) Cause cell with DNA damage to stop dividing C)Cause cell with DNA mutation to proliferate D) Cause cell with DNA damage to start dividing