Ask Question, Ask an Expert

+1-415-315-9853

info@mywordsolution.com

Ask Biology Expert

problem 1) What sources of water are (a) most likely, (b) least likely to contain pathogenic bacteria?

problem 2) Put the following in the correct order for a water purification plant.

(a) Chlorination plant.
(b) Settling tank,
(c) Water tower.
(d) Slow sand filter.
(e) Coarse screen.

problem 3) Which one of the following is least likely to prevent contamination of food by houseflies?

(a) A well-fitting dustbin lid.
(b) Swatting flies.
(c) Covering food with cling-film.
(d) Efficient sewage disposal.

problem 4) Complete the following sentences by selecting the appropriate words from the list below.

In many cases, when you catch an infectious disease, your blood produces ….. (A) ….. against the infective organism. These ….. (B) ….. remain in the blood or can be rapidly made so that you are ….. (C) ….. to further attacks of the disease.
You can acquire ….. (D) …..by receiving injections of a …..(E) ….. form of the pathogen or its inactivated …..(F) ….. The injected substance is called a ….. (G) …..

immune, immunity, pathogens, disease, vaccine, antibodies, toxin, harmless, antigens

problem 5) Which of the following diseases can be prevented by inoculation?

rubella, syphilis, tuberculosis, polio, gonorrhoea, common cold, measles, haemophilia, mumps, tetanus, AIDS

problem 6) Match each disease with its correct type of vaccine.

(a) tuberculosis             (i) harmless forms of virus  
(b) whooping cough     (ii) inactivated toxin
(c) diphtheria               (iii) killed bacteria
(d) polio                       (iv) harmless form of bacteria.

problem 7) Antiseptics and disinfectants both kill ….. (A) …..but only ….. (B) ….. are safe to use on the skin (if sufficiently dilute).

problem 8) Complete the following sentence, selecting the most appropriate words from the list below.

An ideal …..(A) ….. against an infectious disease would be one which destroyed the ….. (B) …...but did not harm the …..(C) …..  pathogen,  host, drug

problem 9) A person with a cough takes a patent cough syrup. In three days, the cough is better. Does this mean that the syrup has cured the cough?  Justify your answer.

Biology, Academics

  • Category:- Biology
  • Reference No.:- M95237

Have any Question? 


Related Questions in Biology

What is inbreeding depression please give some examples of

What is inbreeding depression? Please give some examples of inbreeding depression in dogs and cats?

Mitosis and meiosis are important processesa what does each

Mitosis and meiosis are important processes. a) What does each accomplish; b) Where in the human body can each occur and c) How do the cells produced compare in chromosome number to the parent cells?

Discussion boardthis is only a discussion board not an

Discussion Board This is only a discussion board, not an essay! please follow all the instructions and answer the questions within the bullet that you chose. "Evolution of Animals and Population of Humans" Note: Online s ...

Out of proteins lipids and carbohydrates present in a cell

Out of proteins, lipids and carbohydrates present in a cell membrane, which of the three is minimum?

What are the effects of childhood obesity research

What are the effects of childhood obesity? Research intensively on the effects of obesity, to the individual and society and possible solutions. Font 12, apa, atleast three references

Scientific advances are pointing researchers to new ideas

Scientific advances are pointing researchers to new ideas about how to reduce the side effects of epilepsy medications and improve therapy options for those resistant to current medications. Ongoing studies in animals an ...

We all see animals in our day to day lives choose a

We all see animals in our day to day lives. Choose a behavior you saw exhibited by an animal. Explain your thoughts on the potential proximate and ultimate causes of the behavior.

Compare the path of an amino acid to that of a large fatty

Compare the path of an amino acid to that of a large fatty acid from absorption to delivery to a cell.

In anotherchapter you will learn of evidence that primates

In anotherchapter, you will learn of evidence that primates, especially fossil species in the Hominin group that apparently led to our currentHomo sapiens sapiensspecies identity. Many of the fossils of pre-human species ...

Elisa uses an enzyme-linked antibody to detect and antigen

ELISA uses an enzyme-linked antibody to detect and antigen. Briefly explain how use of the enzyme is ELISA could amplify the detection of a very small amount of antigen in a sample.

  • 4,153,160 Questions Asked
  • 13,132 Experts
  • 2,558,936 Questions Answered

Ask Experts for help!!

Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

Ask Now Help with Problems, Get a Best Answer

WalMart Identification of theory and critical discussion

Drawing on the prescribed text and/or relevant academic literature, produce a paper which discusses the nature of group

Section onea in an atwood machine suppose two objects of

SECTION ONE (a) In an Atwood Machine, suppose two objects of unequal mass are hung vertically over a frictionless

Part 1you work in hr for a company that operates a factory

Part 1: You work in HR for a company that operates a factory manufacturing fiberglass. There are several hundred empl

Details on advanced accounting paperthis paper is intended

DETAILS ON ADVANCED ACCOUNTING PAPER This paper is intended for students to apply the theoretical knowledge around ac

Create a provider database and related reports and queries

Create a provider database and related reports and queries to capture contact information for potential PC component pro