1. Some bacteria are helpful to the body and:
a. cause cavities
b. die quickly outside other living cells
c. help the digestive system function properly
d. give you energy

2. Germs produce toxins in the body that can make you:
a. sneeze a lot
b. cough
c. have diarrhea
d. all of the above

3.List three ways to keep germs from spreading.


4. Describe the proper way to wash hands.

5. Describe what the immune system does for the body.

6. An antigen:
a. is an unknown substance that infects the body
b. is a protein that attaches itself to germs to get rid of them
c. destroys germs in the body
d. is a type of immunity you are born with

7. True or false: Vaccinations help to provide us with adaptive immunity, which is immunity that develops as we are exposed to diseases. T F


8. White blood cells help to:
a. infect the body
b. provide passive immunity
c. destroy infections
d. weaken your immune system

9. A specialized protein that recognizes invaders to the body and attaches to them is called:
a. an antigen
b. an antibody
c. a complement
d. a T cell

10. True or false: It’s OK not to wash my hands after using the bathroom at home because it's cleaner than a public restroom. T F

what is the median 3 2 -9 9 -3 -4 -1 The managers of a pension fund have invested $2.5 million in U.S. government certificates of deposit (CDs) that pay interest at the rate of 2.1%/year compounded semiannually over a period of 20 years. At the end of this period, how much will the investment be worth? (Round your answer to four decimal places.) Suppose that 20% of the residents in a certain state support an increase in the property tax. An opinion poll will randomly sample 900 state residents and will then compute the proportion in the sample that support a property tax increase. How likely is the resulting sample proportion to be within .02 of the true proportion (i.e., between .18 and .22)? (Hint: Use the sampling distribution of the sample proportion in this case.) What is the volume of this rectangular pyramid?3 yd5 yd5 ydcubic yards Andre drew a plan of a courtyard at a scale of 1 to 60. On his drawing, one side of the courtyard is 2.75 inches. if Andre made another courtyard scale drawing at a scale of 1 to 12, would this drawing be smaller or larger than the first drawing? explain your reasoning What was the largest single migration in American history?A. forty-niners to CaliforniaB. Mormons to UtahC. mountain men to OregonD. traders to Mexico Which of these correctly edits the sentence for punctuation mistakes? What is a food that provides energy to perform activitie in a food chain a circle with radius 5 has a sector with a central angle of 9/10pi radians what is the area of the sector Solve x :[tex]{(3 {x}^{2} - 8x + 5)}^{x + 1} = 1[/tex] Which piece of legislation passed by President Rooseveltwas designed to regulate banking and investment and protectconsumers?A. the Glass-Steagall ActOB. the Interstate Commerce ActOC. the Federal Emergency Relief ActD. the Civilian Conservation Corps Suppose a scientist identified two yeast mutants, called huh1 and huh2. The mutants have constitutive expression of the nop operon, which includes the genes nop1 and nop2. One of the mutants is a point mutation in a DNA-binding site, and the other is a deletion of the gene which encodes the DNA-binding protein.Which term describes the regulatory function of the DNA-binding protein?The scientist then performs a experiment mating the two haploid yeast together to determine which mutation is in the DNA-binding protein and which is in the dna-binding site. The experimental setup is listed below, wherein a minus indicates a lose-of-function mutation, and a plus indicates the wild type allele.How will nop1 and nop2 be expressed if huh1 encodes the dna-binding protein and huh2 is a mutation in the binding site? How will nop1 and nop2 be expressed if huh2 encodes the DNA-binding protein and huh1 is a mutation in the binding site? Why do you think perfect flowers are beneficial for species??? the circumference of a circle is 11.4mm. find the length of the diameter. give your answer rounded to 3SF. A paddle wheel on a boat is 8 feet in diameter. The fins along the outer edge travel at a speed of 6.7 feet per second. How long does it take the paddle wheel to complete 100 full revolutions? Round to the nearest second. Which of the following statements about natural killer cells is true?SELECT ALL THAT APPLYGroup of answer choicesNatural killer cells are lymphocytes that function as part of the innate immune system.Natural killer cells secrete toxins onto the surface of neoplasms.Natural killer cells may bind to the Fc portion of antibodies thereby triggering ADCC.Natural killer cells destroy virus infected cells.Natural killer cells require activation by T helper cells, and are responsible for cell-mediated immunity What is the molarity of H2SO3 if 250 mL of the acid was used to neutralize 200 mL of 1.5 M solution of Mg(OH)2? Create a function average_temp(s) that accepts a file name s that contains temperature readings. Each line in the file contains a date followed by 24 hourly temperature readings in a comma-separated-value format, like this example:2/3/2016,18,17,17,18,20,22,25,30,32,32,32,33,31,28,26,26,25,22,20,20,19,18,18,18For each line in the file, the function should print out a line containing two items: the date, then comma, then the average temperature on that date, e.g.3/5/2018, 58.243/6/2018, 60.113/7/2018, 57.55 cos(-15) = _____.cos 75-cos 345cos 15-cos 15 Please help me now plz Steam Workshop Downloader