Anatomy and Physiologyacademic

**Question:** The chemical formula for lead(II) nitrite is: Pb(NO₂)₂. How many oxygen atoms are in each formula unit of lead(II) nitrite? The chemical formula for lead(II) nitrite is: $$Pb(NO_2)_2$$ How many oxygen atoms are in each formula unit of lead(II) nitrite?

The combined gas law is expressed by: A. $P_{1} V_{1}=P_{2} V_{2}$ B. $\frac{P_{1} V_{1}}{T_{1}}=\frac{P_{2} V_{2}}{T_{2}}$ C. $\frac{P_{1}}{T_{1}}=P_{2} T_{2}$ D. $\frac{V_{1}}{T_{1}}=\frac{V_{2}}{T_{2}}$

Which of the following best defines homeostasis? A. The maintenance of an organism's internal environment within certain limits. B. The ability of an organism to find its own food. C. The maintenance of an organism's external environment within broad limits. D. The ability of an organism to find a mate.

Two possible Lewis structures for the molecule HCN are given. Determine the formal charge on each atom in both structures. Which structure is the best Lewis structure for HCN? - ☐ The structure with carbon as the central atom. - ☐ The structure with nitrogen as the central atom.

# Solve for $x$. $$ 2^{x+5}=13^{2 x} $$ Write the exact answer using either base-10 or base-e logarithms.

# Problem 4: Bureau of Public Roads (BPR) function (shown below) is a travel time function used in urban transportation planning to calculate travel time on a link given volume on the link: $$ t=t_{0}\left(1+\alpha\left(\frac{v}{C}\right)^{\beta}\right) $$ Where, $t=$ travel time on the link $t_{0}=$ free-flow travel time on the link $v=$ volume on the link $C=$ capacity of the link $\alpha, \beta=$ parameters of the model estimated for local condition Demand between a given origin-destination (OD) pair in a transportation network is 10,100 vehicles/hour. There are three independents links connecting the OD pair, whose travel times can be represented using the BPR function. Parameters of the BPR function for the three links are given below. | BPR parameter | Link 1 | Link 2 | Link 3 | | --- | --- | --- | --- | | Free-flow travel time, $t_{0}$ (minutes) | 17.0 | 15.5 | 12.5 | | Capacity, $C$ (vehicles/hour) | 3800 | 4200 | 6600 | | $\alpha$ | 0.2 | 0.3 | 0.4 | | $\beta$ | 2.8 | 3.7 | 4.3 | Perform three iterations of the method of successive averages (MSA) to find user equilibrium assignment flows between the given OD pair. Show hard calculations for each iteration. At the end, summarize your calculations in a table by showing link flows and travel times at the end of each iteration. It's OK if flow on a link exceeds its capacity (this method allows for such scenarios, but penalizes such routes through rapidly increasing travel times).

# Exercise 7.4 Solve the following problems: ## Objective <br> Constrain 1. Maximize $z=0.8 x-0.5 y$ $x-y \geq-2$ $2 x-y \leq 4$ $2 x+y \leq 8$ $x, y \geq 0$

Which of these is an example of a positive feedback loop? A. Increased sunlight leads to more plant growth, which in turn leads to more oxygen production. B. A thermostat turns on the heater when the temperature drops below a set point. C. Blood clotting occurs faster as platelets attract more platelets to the site of a wound. D. Sweating helps to cool the body down when it gets too hot.

What is the action of the quadratus lumborum?

Determine which ion has the electron configuration: 1s 2 2s 2 2p 6 .

Convert 99.6"F to Celsius using the formula $\frac{5}{9} \times\left({ }^{\circ} \mathrm{F}-\right.$ 32). A. $37.6^{\circ} \mathrm{C}$ B. $37.5^{\circ} \mathrm{C}$

What is $\sqrt{30}$ in simplified form? $\bigcirc 5 \sqrt{6}$ $\bigcirc 3 \sqrt{5}$ $\bigcirc 3 \sqrt{10}$ $\bigcirc \sqrt{30}$ can't be simplified.

Which of the following is an arithmetic sequence? A. $-\frac{7}{11}, \frac{6}{11},-\frac{2}{11}, \frac{4}{11}$ B. $-\frac{3}{4},-\frac{3}{5},-\frac{3}{6},-\frac{3}{7}$ C. $\frac{1}{2}, 2, \frac{7}{2}, 5$ D. $\frac{3}{4},-\frac{3}{2}, 3,-6$

# Topic Test ## 1 ### 2 ### 3 ### What is the length of the hypotenuse of the triangle? - √22 ft - √33 ft - √57 ft - √66 ft Mark this and return

# Drag the appropriate labels to their respective targets. | Reset | Help | | --- | --- | | | | | Ne₂(g) | I(s) | | --- | --- | | | | | Cl₂(g) | Ca(s) | | --- | --- | | | | | H₂(g) | O(g) | | --- | --- | | | | | Ca₂(s) | Cl(g) | | --- | --- | | | | | H(g) | I₂(s) | | --- | --- | | | | | O₂(g) | Ne(g) | | --- | --- | | | | | oxygen | | | --- | --- | | chlorine | | | neon | | | calcium | | | iodine | | | hydrogen | |

# Convert 63 ${ }^{\circ} \mathrm{F}$ to degrees Celsius. If necessary, round your answer to the nearest tenth of a degree. Here are the formulas: $$ \begin{gathered} F=\frac{9}{5} C+32 \\ C=\frac{5}{9}(F-32) \end{gathered} $$

Based on the values in Cells B77:B81, which function can automatically return the value in Cell C77? | 76 | Sales | | | --- | --- | --- | | 77 | $\$ 794$ | $\$ 721$ | | 78 | $\$ 721$ | | | 79 | $\$ 854$ | | | 80 | $\$ 912$ | | | 81 | $\$ 1,020$ | | # 0 Image not displaying? | $=$ Lowest() | | | --- | --- | | (0) $=$ Min() | | | $=$ Floor() | | | $=$ Smallest() | | | $=$ Bottom() | |

# Convert 55°F to degrees Celsius. If necessary, round your answer to the nearest tenth of a degree. Here are the formulas: $$ C = \frac{5}{9} (F - 32) $$ $$ F = \frac{9}{5} C + 32 $$ Calculate: $55^{\circ} \mathrm{F}=\frac{1}{2} \text{ \%circ C}$

Differences between an animal cell and a plant cells # Differences Between an Animal Cell and Plant Cells | Organelles | Plant Cell | Animal Cell | | --- | --- | --- | | 1) Plasma membrane | | | | 2) Cell wall | | | | 3) Cytoplasm | | | | 4) Nucleus | | | | 5) Nucleolus | | | | 6) Chloroplasts | | | | 7) Mitochondrion | | | | 8) Golgi bodies | | | | 9) Extracellular Reactions | | | | 10) Lysosomes | | | | 11) Centrioles | | | | 12) Exosomes | | | | 13) Nucleosides | | |

An 80.0-kg object is falling and experiences a drag force due to air resistance. The magnitude of this drag force depends on its speed, , and obeys the equation. What is the terminal speed of this object? | 72.2 m/s | | | --- | --- | | 12.6 m/s | | | 47.3 m/s | | | 34.2 m/s | | | 6.45 m/s | |

Some students used vinegar to dissolve away the shells of three eggs and used these eggs as models of human red blood cells. The students observed the changes in the eggs when they were placed in different solutions. ### Which statement best describes the role of the cell membrane in this model? - ☐ The cell membrane is an impermeable barrier that prevents water from entering the cell. - ☐ The cell membrane allows solutes to enter the cell, which causes the cell to shrink. - ☐ The cell membrane allows water to enter and leave the cell.

1. How many grams of acetic acid, $\mathrm{HC}_{3} \mathrm{H}_{2} \mathrm{O}_{2}$ (molar mass $=60.05 \mathrm{~g} / \mathrm{mol}$ ) are present in 475 mL of a $0.0500 \mathrm{M} \mathrm{HC}_{3} \mathrm{H}_{2} \mathrm{O}_{2}$ solution? a. $0.475 \mathrm{~g}$ b. $1.43 \mathrm{~g}$ c. $5.70 \mathrm{~g}$ d. $6.32 \mathrm{~g}$ 2. What is the concentration of the final solution when 5.0 mL of 15.0 M NaOH is diluted to $106.0 \mathrm{~mL} 1$ a. 1.3 M b. 0.75 M c. 0.13 M d. $0.075 \mathrm{M}$ 3. What is the nitrate ion concentration in the final solution when 50.0 mL of 0.50 M NaNO3 is mixed with 50.0 mL of 0.10 M $\mathrm{Ba}\left(\mathrm{NO}_{3}\right)_{2}$ ? a. 1.3 M b. 0.35 M c. 0.13 M d. 0.035 M 4. What is the concentration of hydrochloric acid if 23.30 mL of 0.1511 M NaOH is needed to neutralize a 25.00 mL aliquot of HCl ? a. $0.0704 \mathrm{M}$ b. $0.1028 \mathrm{M}$ c. $0.1408 \mathrm{M}$ d. $0.1621 \mathrm{M}$

# What is the conjugate acid of $\mathrm{HCO}_{3}^{-}$? A. $\mathrm{OH}^{-}$ B. $\mathrm{H}_{2} \mathrm{CO}_{3}$ C. $\mathrm{CO}_{3}^{2-}$ D. $\mathrm{H}_{2} \mathrm{O}$ E. $\mathrm{H}_{3} \mathrm{O}^{+}$

Multiply: $4 x \sqrt[3]{4 x^{2}}\left(2 \sqrt[3]{32 x^{2}}-x \sqrt[3]{2 x}\right)$ $\times 32 x^{2} \sqrt[3]{2 x}-8 \sqrt[3]{x^{2}}$ $4 x^{2} \sqrt[3]{2 x}-8 x^{3}$ $\times 64 x^{2} \sqrt[3]{2 x}-8 x^{3}$ $64 x^{2} \sqrt[3]{2 x}-8 x \sqrt[3]{x}$

What is 17.318 rounded to the nearest hundredth? 17.31 17.32 17.3 17.4

What are examples of physical characteristics?

Is 72 divisible by 12 ? $\bigcirc$ Yes, because $72=12 \cdot 6$. $\bigcirc$ Yes, because $72=12 \cdot 7$. $\bigcirc$ Yes, because $6=\frac{12}{72}$. $\bigcirc$ No, because 12 is not a divisor of 72. $\bigcirc$ No, because 72 is not a multiple of 12.

Place the following steps of endomembrane system function in the correct order: a. Ribosomes on the rough ER synthesize proteins b. Proteins are modified by the Golgi apparatus c. Golgi apparatus receives transport vesicles from the rough ER d. Proteins are packaged into transport vesicles e. Modified proteins may be secreted from the cell by exocytosis

Butanoic acid has an acrid taste and a terribly unpleasant odor. It is found in rancid butter and Parmesan cheese. In aqueous solution, butanoic acid undergoes the reversible reaction shown. Label the conjugate acid-base pairs. Butanoic acid | water | Butanoate ion | Hydronium ion | Answer Bank | | | --- | --- | | conjugate acid | | | conjugate base | | | base | |

"Analyze: Use your summaries and the Gizmo to answer the following questions: A. What are the four phases of mitosis? B. During which phase is the DNA duplicated? C. What is the relationship between chromatin and chromosomes? D. In which phase are chromatids pulled apart? E. What is the role of the centrioles? F. In which phase does a new nuclear membrane develop? G. A cell has a single line of chromosomes. What is the phase? H. During which three phases are individual chromosomes no longer visible?"

4. Why did McDonald's create the McCafé experience in its stores, despite the very high cost? - The cost of creating the McCafé was offset in less than one month of sales in each store. - The company wanted to be seen as a lifestyle brand, not just a place to eat a burger. - The company wanted to make a shift away from burgers to more healthy foods and beverages. - The company was looking to lower their wait time in-store by having coffee and beverages served at a different counter than food. - None of these is correct.

"A normal body temperature for a human is approximately 98° Fahrenheit. What is this temperature in degrees Celsius? Round your answer to the nearest tenth. a. 36.7 degrees b. 62.8 degrees c. 208.4 degrees d. 39.6 degrees"

During which phase of meiosis does crossing over of chromosomes occur?

How many electrons does phosphorus have in its valence shell? A. 1 B. 2 C. 3 D. 4 E. 5

1. To calculate an average monthly temperature, you have to add up all the average daily temperatures and divide by the number of days in the month. To calculate the average annual temperature, you add up all the average monthly temperatures and divide by 12. Temperature Ranges are calculated by taking the highest temperature and subtracting the lowest temperature. Table II has average monthly temperatures, as degrees Centigrade, for both Vancouver, BC and Winnipeg, Manitoba. Determine the Average Annual Temperature and the Temperature Range for both cities from the data in Table II. **TABLE II** | MONTH | VANCOUVER | WINNEPEG | | --- | --- | --- | | Jan | 2 | -38 | | Feb | 4 | 16 | | Mar | 6 | -8 | | Apr | 9 | 3 | | May | 12 | 11 | | Jun | 15 | 17 | | Jul | 17 | 20 | | Aug | 17 | 19 | | Sep | 14 | 13 | | Oct | 10 | 7 | | Nov | 6 | -4 | | Dec | 4 | -14 | a) Avg. Apt. Temp.: Vancouver ***_***_ Winnipeg ***_*** b) Temperature Range: Vancouver ***_***_ Winnipeg ***_*** c) Plot the temperatures data for Vancouver and Winnipeg on the graphs of Figure 4. d) Explain why there is a difference in annual temperature between Vancouver and Winnipeg. e) Which city, Vancouver and Winnipeg has the most maximum temperature? **FIGURE 4**

Which best describes the cell theory? A. Scientists know all there is to know about cells, so the cell theory will not change. B. As technological advancements are made, the cell theory may change. C. A theory, once formulated, cannot be changed. D. The development of a synthetic cell has caused the cell theory to change.

"What is the edible, outer layer of a grain kernel that consists of fiber? A. Kernel B. Hull C. Endosperm D. Germ E. Bran "

What is the function of mitochondria in cells?

"When the SimCell membrane in the Cell - O - Scope simulator jiggled back and forth, this was due to: Pressure against the membrane Osmosis causing molecules to flow across the membrane The membrane not being at equilibrium None of the above"

A project manager diligently measured progress of a project by taking many performance measurements. These measures were promptly documented and filed away. The project went over budget and behind schedule, which came as a surprise to key stakeholders. However, the project manager showed them the performance measures that were taken, so this shouldn't have been a surprise to anyone. What advice would you give to this project manager? A. The project manager should have reached out to the team earlier to discuss ways of improving their performance. B. The project manager should have saved these files in a more accessible location so that all the key stakeholders could have had visibility to the status. C. These measures should have been communicated to key stakeholders as they became available. D. The key stakeholders should have been more involved in decision-making during the project.