Saturday, January 15, 2011

Home Science Multiple Choice Questions

1. Name 3 bones most often affected by osteoporosis
(a) Arm, shoulder and neck bones
(b) Hip, wrist and spinal bones
(c) Both a and b
(d) None of these
Ans: b

2. Which of the following sentence is False?
(a) As a rule of thumb more colour indicates greater antioxidant activity
(b) Aiming for a variety of colours in a meal will, usually ensure a wider variety of nutrients
(c) Phytochemical supplements are a good alternative to eating lots of fruits and vegetables
(d) Lycopene may aid in prostate health. It is a available in tomatoes
Ans: a

3. The typical person reporting back pain is:
(a) African-American male, divorced and in his 50s
(b) White female, married, in her 40s
(c) Boys and girls, middle school, with heavy homework loads
(d) Athletes, especially football and hockey players
Ans: d

4. The recommended serving size of cooked cereal, rice or pasta is:
(a) 1 1/2 cups
(b) 1/2 cup
(c) 12 ounces
(d) 2 cups
Ans: a

5. What’s the recommended serving size of fruit?
(a) 2 cups
(b) 10 ounces
(c) 1 piece
(d) It varies, depending on the type and form
Ans: d

6. What percentage of our body fat and shape (apple or pear) is attributable to genes?
(a) 10 to 15 per cent
(b) 20 to 25 per cent
(c) 50 to 75 per cent
(d) 100 per cent
Ans: b

7. Which item is Not part of a home remedy for warts?
(a) White glue
(b) Nail polish
(c) Banana peel
(d) Potato skin
Ans: a

8. What are the major types of eating disorders?
(a) Anorexia nervosa and bulimia nervosa
(b) Anorexia nervosa, bulimia nervosa and binge eating
(c) Anorexia nervosa, bulimia nervosa, binge eating and obesity
(d) Anorexia nervosa, bulimia nervosa, binge eating, obesity and starvation
Ans: d

9. What is Not a symptom of anorexia nervosa?
(a) Cold intolerance
(b) Increased susceptibility infection
(c) Skeletal muscle atrophy
(d) High blood pressure
Ans: d

10. What are chronic diseases?
(a) Diseases you catch over and over
(b) Antibiotic-resistant bacterial infections
(c) Diseases that are not completely curable and don’t go away on their own
(d) Sexually transmitted diseases, like AIDS and herpes
Ans: c

11. What is a sneeze also called?
(a) Reflexnutation
(b) Sternutation
(c) Inverse Reflex Action
(d) Achoo
Ans: b

12. Which statement is False?
(a) Arthritis affects more men than women
(b) Most cases of arthritis are not preventable
(c) An overweight person has a greater chance of developing arthritis than someone of normal weight
(d) Rheumatoid arthritis is the most disabling 1ormof arthritis
Ans: a

13. Treatments for gum is disease include:
(a) scaling and root planning
(b) regular flossing
(c) medication
(d) a and c
Ans: d

14. Can a healthy lifestyle prevent Alzheimer’s?
(a) Yes. Physicians say exercise, a low- fat diet, and ongoing mental stimulation can prevent the disease
(b) No. It’s entirely genetic in origin
(c) Scientists aren’t sure Alzheimer’s can be prevented, but they say a healthy lifestyle may help protect brain cells
(d) None of these
Ans: c

15. The symptoms of gum disease are:
(a) a craving for sweets
(b) swollen gums that bleed easily
(c) yellowing teeth
(d) cavities
Ans: b

Zoology/Botany Multiple Choice Questions

1. The hydatid disease in humans is caused by which one of the following:
(a) Cystic stage of Taenia solium
(b) Cystic stage of Fasciola hepatica
(c) Cystic stage of Echinococcus granulosus
(d) Adult stage of Dipylidium caninum
Ans. (c)

2. Which one of the following types of pseudopodia is found in Actinophrys?
(a) Lobopodium
(b) Filopodium
(c) Rhizopodimu
(d) Axopodium
Ans. (d)

3. In which of the following groups of Arthropoda, do the body divisions include cephalotorax and abdomen?
(a) Crustacea only
(b) Crustacea and Arachnida only
(c) Crustacea, Arachnida and Onychophora only
(d) Crustacea, Arachnida, Onychophora and Chilopoda
Ans. (b)

4. The water vascular system in echinoderms is known to consist of the following structures. But in Asterias, which one of them is absent?
(a) Ring canal
(b) Madreporite
(c) Polian vesicles
(d) Stone canal
Ans. (c)

5. With reference of Palaemon, which one of the following statements are correct?
(a) Hastate plate is present in pyloric stomach
(b) 13 pairs of cephalothoracic and 6 pairs of abdominal appendages are present
(c) Statocyst as a sensory structure is located at the base of second antenna only and attached to ventral wall
(d) The gonopore in male is present at the base of each fourth walking leg
Ans. (a)

6. Consider the following statements:
1. Contractile vacuoles in Paramecium help in osmoregulation.
2. Peristome in Paramecium is situated on its ventral surface.
Which of the statements given above is/are correct?
(a) 1 only
(b) 2 only
(c) Both 1 and 2
(d) Neither 1 nor 2
Ans. (a)

7. Which one of the bones had a maximum tendency towards reduction in the vertebrate phylogeny?
(a) Dermal bones
(b) Sesamoid bones
(c) Appendicular bones
(d) Replacing bones
Ans. (b)

8. Match list-I with list-II and select the correct answer using the codes given below the lists:
List-I List-II
A. Dromaeognathous skull 1. Pigeon
B. Desmognathous skull 2. Sparrow
C. Schizognathous skull 3. Duck
D. Aegithognathous skulls 4. Tinamus
5. Bat
Codes:
A B C D
(a) 4 2 3 1
(b) 3 2 1 5
(c) 4 3 1 2
(d) 3 4 2 5
Ans. (d)

9. Chordae tendinae is a part of the:
(a) heart
(b) lung
(c) notochord
(d) tendon
Ans. (a)

10. Consider the following statements
(i) Claspers in sharks are posterior extensions of pelvic fin
(ii) Claspers in sharks are modified pectoral fins
(iii) Gonopodium in a few teleosts is specialized anal fin
(iv) Gonopodium in a few teleosts is partly modified caudal fin
Of these statements
(a) i and iii are correct
(b) ii and iii are correct
(c) i and iv are correct
(d) ii and iv are correct
Ans. (c)

11. Which of the following pair(s) of animals and organs is/are correctly matched?
(i) Balanoglossus — Oral hood
(ii) Ascidian — Tube feet
(iii) Amphioxus — Velum
Select the correct answer using the codes given below:
Codes:
(a) i, ii and iii
(b) i and iii
(c) ii alone
(d) iii alone
Ans. (d)

12. Can the wing of Draco be homologized with that of bat?
(a) Yes, because both have membranes of skin
(b) No, because membranes in Draco are supported by greatly lengthened six pairs of ribs and in bat by the anus, greatly elongated 2nd through 5th fingers, hind limbs and usually all or part of the tail
(c) Yes, because wings of both of them can be folded and expanded according to the need
(d) No, because the wing of Draco is used for gliding while that of bat is used for flying
Ans. (b)

13. The largest and the most powerful adductor muscles in flying bird is the
(a) coracobrachialis longus
(b) pectoralis major
(c) pectoralis minor
(d) tensor longus
Ans. (b)

14. Which one of the following sets of derivatives of integumentary structure characterizes birds as glorified reptiles?
(a) Syrinx and scales
(b) Scales and claws
(c) Claws and uropygeal glands
(d) Syrinx and uropygeal glands
Ans. (d)

15. Which one of the following does not have a specialized heart?
(a) Amphioxus
(b) Dog fish
(c) Chameleon
(d) Scaly ant-eater
Ans. (a)

Economics Multiple Choice Questions

1. If the supply of a commodity is very inelastic in the exporting country and demand for the same is fairly elastic in the importing country, the imposition of tariff will have which one of the following?
(a) A very large protective effect
(b) No protective effect at all
(c) A very large revenue effect
(d) A very small protective effect
Ans. (a)

2. Under Gold Standard, how can a surplus in a country’s balance of payments be eliminated?
(a) By inflow of gold and a rise in general price level
(b) By outflow of gold and a rise in general price level
(c) By inflow of gold and a fall in general price level
(d) By outflow of gold and a fall in general price level
Ans. {d)

3. Which one of the following is considered as non-debt creating foreign investment inflow?
(a) External assistance
(b) Foreign direct investment
(c) Borrowing from the IMF
(d) Commercial borrowings
Ans. (b)

4. In order to reduce the balance of payment deficits of the member countries, which one of the following schemes was introduced by the World Bank in 1980?
(a) Buffer stock loans
(b) Supplementary loans
(c) Structural adjustment loans
(d) Gold loans
Ans. (c)

5. Which one of the following is a component of disequilibrium mentioned often in the context of trade and development?
(a) Revenue gap
(b) Savings-investment gap
(c) Income gap
(d) Expenditure gap
Ans. (b)

6. consider the following statements
The coefficient of correlation.
1. is not affected by a change of origin and scale.
2. lies between —a and + ct
3. is a relative measure of linear association between two or more variables.
Which of the statements given above is/are correct?
(a) 1 only
(b) 2 and 3
(c) l and 3
(d)1, 2 and 3
Ans. (c)

7. The first quartile derived from set of observations is 27 and its quartile deviation is 17. What is its third quartile?
(a) 59
(b) 61
(c) 65
(d) 57
Ans (b)

8. Which one of the following countries has the highest life expectancy at birth?
(a) Pakistan
(b) India
(c) Nepal
(d) Sri Lanka
Ans. (d)

9. Which category of the target groups is not included in the SHG bank linkage programme for micro-finance to agriculture?
(a) Unemployed non-agricultural labourers
(b) Agricultural and non-agricultural labourers
(c) Small and marginal farmers
(d) Artisans and craftsmen
Ans. (a)

10. According to Census-2001 data, what is the urban population as percentage of total population of India?
(a) 23.3%
(b) 25.7%
(c) 27.8%
(d) 28.9%
Ans. (c)

11. In which of the following y was the highest growth of general index of industrial production in India registered?
(a) 2001-02
(b) 2002-03
(c) 2003-04
(d) 2004-05
Ans. (d)

12. Consider the following components of money supply in India
1. Currency in circulation.
2. Banker’s deposits with the RBI
3. Other deposits with the RBI
4. Demand deposits of banks
Which of the above are the components of Reserve Money?
(a) l and 3
(b) l, 2 and 3.
(c) 1, 2 and 4
(d) 2, 3 and 4
Ans. (b)

13. Consider the following sectors:
1. Electrical Equipments
2. Service Sector
3. Food Processing Industries
4. Metallurgical Industries
Which one of the following is the correct sequence in ascending order in terms of their share in attracting FDI inflows in India?
(a) 4-3-2-1
(b) 1-2-3-4
(c) 2-1-3-4
(d) 1-2-4-3
Ans. (a)

14. Inverted-U hypothesis of Kuznets is associated with movement of which one of the following?
(a) Consumption inequality
(b) Wealth inequality
(c) Income inequality
(d) Tax inequality
Ans. (c)

15. With which one of the following is backward bending supply curve usually associated.
(a) Land
(b) Labour
(c) Capital
(d) Organisation
Ans. (b)

Home Science Multiple Choice Questions

1. What percentage of Americans over the age of 35 has gum disease?
(a) Less than 10 per cent
(b) Approximately 25 percent
(c) Exactly 50 percent
(d) More than 75 per cent
Ans: d

2. Why do some moles change from flat to raised?
(a) As the epidermis (outer skin layer) matures, the cells become thick and scaly
(b) Scientists aren’t sure
(c) A minor mutation in our DNA code causes the cells to multiply
(d) The flat mole becomes infected with cancerous cells and swells
Ans: a

3. How can you get rid of a mole?
(a) Rub it with Australian tea tree oil
(b) Cover it with duct tape for a month or so
(c) Have it surgically removed by a physician
(d) Spray a little Windex on it
Ans: c

4. The most effective way to stop using drugs is:
(a) Just say no
(b) Undergo electroconvulsive shock therapy
(c) Go to jail
(d) Undergo drug rehabilitation treatment
Ans: d

5. A calorie is:
(a) the amount of energy needed to raise the temperature of one gram of water by one degree Celsius
(b) a nutrient
(c) a point system devised by dietician to describe the amount of fats in a particular food
(d) None of these
Ans: a

6. Congestive heart failure is:
(a) a problem for 5 million Americans
(b) a weakened heart that can’t efficiently pump blood
(c) both a and b
(d) the same thing as a heart attack
Ans: d

7. Why is there so, much talk about antioxidants?
(a) They may create free radicals
(b) They may be effective in fighting obesity
(c) They may reduce the risk of aging-related diseases
(d) They may build muscle strength and endurance
Ans: c

8. Which sentence is true?
(a) Dietary guidelines recommend five to nine servings of fruits and vegetables daily
(b) Dietary guidelines recommend three to five servings of fruits and vegetables daily
(c) One cup of blueberries equals one serving of fruit
(d) A potato does not count as a vegetable serving
Ans: b

9. Which of these foods is’ Not a good source of antioxidants?
(a) Iceberg lettuce
(b) Tea
(c) Spinach
(d) Carrots
Ans: a

10. Which of these foods contain no protein?
(a) Butter
(b) Rice
(c) Peanut butter
(d) Kale
Ans: d

11. How much cooked, skinless poultry, seafood or lean meat should you eat per serving?
(a) 8 ounces
(b) 2 to 3 ounces
(c) 10 to 12 ounces
(d) 4 to 6 ounces
Ans: b

12. In a study of lean, active adolescents and obese, sedentary kids, which group consumed the most calories?
(a) The lean, active kids
(b) The obese, sedentary kids
(c) All of these combined
(d) None of these
Ans: a

13. Fats, carbohydrates and proteins contain how many calories per gram?
(a) 50, 20 and 10
(b) 14, 19 and 30
(c) 9, 4 and 4
(d) None of the above
Ans: c

14. Drug addiction is:
(a) a moral problem; bad people use drugs
(b) a sign of weak willpower
(c) a lifestyle choice
(d) a disease
Ans: d

15. What conditions can cause symptoms similar to Alzheimer’s disease?
(a) Parkinson’s disease, Huntington’s disease, brain tumour, head injury
(b) Thyroid gland disorders, nutritional deficiencies, hormone or electrolyte imbalances
(c) Medication side effects, drug interactions, alcoholism
(d) Emotional trauma, clinical depression, schizophrenia, delirium
Ans: a

Rajasthan General Knowledge Questions

1. Which one amongst the following is incorrect?
(A) In the western part of Rajasthan generally salty lakes are available
(B) Sambhar lake is the biggest salty lake in India
(C) Nakki lake is the deepest lake in Rajasthan
(D) Rajsamand lake is 64 kilo meters from Udaipur and it is in Udaipur district
Ans : (D)

2. 14 N.E.L.P. Blocks, 1 J. V. Blocks,2 Nomination Blocks and 4 C.B.M. Blocks are related to:
(A) Gypsum belt
(B) Gold belt
(C) Petroleum Exploration
(D) Lignite belt
Ans : (C)

3. An approximate area of Rajasthan covered under western desert, is?
(A) More than 60%
(B) Less than 30%
(C) 40%
(D) 50%
Ans : (A)

4. National Institute of Ayurveda, an autonomous body of Ministry of Health and Family Welfare, Government of India is located at?
(A) Udaipur
(B) Jodhpur
(C) Banswara
(D) Jaipur
Ans : (D)

5. The famous historian of Rajasthan who was also a social reformer was?
(A) Mankaran Sarda
(B) Harbilas Sarda
(C) C.K.F. Waltier
(D) Jamnalal Bajaj
Ans : (B)

6. Recently the Bank of Rajasthan has been merged with?
(A) H.D.F.C.
(B) ICICI
(C) State Bank of Bikaner and Jaipur
(D) State Bank of India
Ans : (B)

7. Who was made the Raj Pramukh of united Rajasthan which came into existence of March 25, 1948?
(A) Maharaja of Dholpur
(B) Maharaja of Karauli
(C) Maharao of Kota
(D) Maharaja of Sirohi
Ans : (C)

8. The first cooperative society in Rajasthan was established in 1905 of?
(A) Bhinai in Ajmer district
(B) Jaola in Nagour district
(C) Gulabpura in Bhilwada district
(D) Bassi in Jaipur district
Ans : (A)

9. Sariska and Ranthambore are the reserves for which of the following animals?
(A)Lion
(B) Deer
(C)Tiger
(D) Bear
Ans : (C)

10. Who was the famous ruler of Mewar who repaired the fort of Achalgarh?
(A) Rana Ratan Singh
(B) Maharana Kumbha
(C) Rana Sanga
(D) Maharana Raj Singh
Ans : (B)

11. Who was the first historian who wrote about ‘Feudalism’ in Rajasthan during the 19th century?
(A) Col. James Tod
(B) Dr. L. P. Tessitori
(C) George Grearson
(D) John Thomas
Ans : (A)

12. River Khari is part of the drainage system of?
(A) Arabian Sea
(B) Inland drainage
(C) Indeterminate drainage
(D) Bay of Bengal
Ans : (D)

13. The district having North-South elongation, is?
(A) Jhalawar
(B) Bhilwara
(C) Chittorgarh
(D) Jhunjhunu
Ans : (C)

14. Which train was introduced for tourists with the help of Railway Ministry in Rajasthan on January 11,2009?
(A) Princely Rajasthan on wheels
(B) Royal Rajputana on wheels
(C) Great Rajputana on wheels
(D) Royal Rajasthan on wheels
Ans : (D)

15. Gang canal, is among the oldest canals was constructed by Maharaja Ganga Singh in?
(A)1930
(B) 1927
(C)1944
(D) 1932
Ans : (B)

Home Science Multiple Choice Questions

1. Whit is Oleuropein?
(a) Glycoside found in green olive leaves
(b) An olive
(c) Scientific name of the Green Olive Tree
(d) None of these
Ans: a

2. Untreated gum disease leads over time to what consequence?
(a) bad breath
(b) expensive dental bills
(c) tooth loss
(d) All of the above
Ans: d

3. How many moles does the average person have?
(a) 10 to 15
(b) 20 to 40
(c) 50 to 100
(d) A number roughly equivalent to their age
Ans: b

4. Addiction’s most confounding symptom is:
(a) a runny nose
(b) violence
(c) denial
(d) a high fever
Ans: c

5. How does one get a chronic disease?
(a) From smoking
(b) From eating too much
(c) You catch it from your parents
(d) All of the above
Ans: d

6. One pound equals how many calories?
(a) 1,000
(b) 150
(c) 3,500
(d) 1,250
Ans: c

7. Which group is most at risk of developing an eating disorder?
(a) Highly aggressive adolescent girls
(b) Shy, passive teen girls
(c) Homosexual teen Js
(d) Preteen .girls from low-income families
Ans: a

8. A myocardial infarction is:
(a) explosive gas
(b) coronary heart failure
(c) a heart attack
(d) something that happens on the TV drama, ER
Ans: b

9. The recommended serving size of milk, yogurt or cheese is:
(a) 2/3 cup for each
(b) 1 cup low-fat or nonfat milk or yogurt; 1 1/2 ounces low-fat natural cheese
(c) 6 ounces for each
(d) 3/4 cup low-fat or nonfat milk or yogurt; 2 ounces low-fat natural cheese
Ans: d

10. What is osteoporosis?
(a) A disease marked by low bone mass and deteriorating structure of bone tissue
(b) A complication of obesity where bones break easily under the strain of excess weight
(c) A type of cancer that causes bones to shrink and a part
(d) A hereditary condition charactized by short stature and small body frame
Ans: a

11. Why are proteins important?
(a) They improve mental clarity
(b) They build enzymes, muscles, tissues, hormones and red blood cells
(c) They provide the body with energy
(d) They build muscle strength and endurance
Ans: b

12. Which of the foods or combinations of foods provide good quality protein?
(a) Sashimi (raw fish) and steak
(b) Eggs
(c) Beans and brown rice
(d) All of the above
Ans: d

13. What is arthritis?
(a) Muscle inflammation
(b) Enlarged bones
(c) Joint inflammation
(d) Arthur’s disease
Ans: c

14. Angina occurs when
(a) you’re having a heart attack
(b) not enough oxygen is reaching your heart muscle
(c) you eat too much of that cheesy stuff on your nachos
(d) there’s air in between the heart spaces
Ans: b

15. Why do so many people have chronic diseases?
(a) They don’t eat a healthy diet
(b) They don’t take vitamins
(c) It’s a normal part of aging
(d) We’re getting sick from the electromagnetic fields in our environment — the electric wires overhead, cell phones, microwave ovens, and stuff like that
Ans: a

Zoology/Botany Multiple Choice Questions

1. The type of palate found in pigeon’s skull is:
(a) dromaeognathous
(b) schizognathous
(c) aegithognathous
(d) desmognathous
Ans. (b)

2. Consider the following characteristics of an animal:
1. Body covering consists of a thin, membranous and transparent cuticle.
2. An extensive perivisceral coelom is absent.
3. Digestive system includes a long alimentary canal and digestive glands.
4. Parapodia and setae are absent.
The above stated characteristics are true in case of which one of the following?
(a) Pheretima posthuma
(b) Hirudinaria granulosa
(c) Nereis dumerillii
(d) Lumbricus viridis
Ans. (b)

3. The class of Arthropoda which has thin cuticle and dermo-muscular body wall is
(a) Crustacea
(b) Arachnida
(c) Onychophora
(d) Myriapoda
Ans. (c)

4. Which one of the following is a characteristic of adult ascidian?
(a) Elongated tail
(b) Large notochord
(c) Enlarged pharynx
(d) Well developed statocyst
Ans. (c)

5. Which one of the following is not a characteristic of Bryozoa?
(a) They are microscopic colonial forms
(b) They are included under the group Lophophorate Coelomates.
(c) Alimentary canal is always in the form of a straight tube
(d) The colony is composed of zoids
Ans. (c)

6. The cryptozoite stage in the life cycle of Plasmodium is found in which one of the following?
(a) Human erythrocytes
(b) Human hepatocytes
(c) Salivary glands of Anopheles
(d) Intestinal epithelium of Anopheles
Ans. (b)

7. Lung fishes are
(a) Marine inhabitants
(b) Marine and freshwater inhabitants
(c) Freshwater and terrestrial inhabitants
(d) Freshwater inhabitants
Ans. (d)

8. In singing birds, the sound is produced by the:
(a) lungs
(b) air-sacs
(c) syrinx
(d) larynx
Ans. (c)

9. Match list-I (animals) with list-II (the group to which they belong) and select the correct answer using the codes given below the lists:
List-I List-II
A. Hammer headed shark 1. Marsupial
B. Pangolin 2. Condrichthyes
C. Emu 3. Neornithes
D. Mud puppy 4. Eutheria
5. Urodela
Codes:
A B C D
(a) 2 4 3 5
(b) 4 3 5 1
(c) 2 4 5 1
(d) 4 2 3 5
Ans. (a)

10. In rabbit, jugal and squamosal form:
(a) palatine process
(b) zygomatic arch
(c) neural arch
(d) sigmoid arch
Ans. (b)

11. In the crarnostylic or cranioamphystylic skull
(a) incus is formed form quadrate and malleus is formed form articular
(b) incus is formed form articular and malleus is formed form quadrate
(c) both incus and malleus are formed form quadrate
(d) both incus and malleus are formed from squamosal
Ans. (a)

12. Neopallium appeared for the first time in one group of vertebrates and reached a high level of development in another group of vertebrates. The two groups of vertebrates in question are respectively:
(a) reptiles and birds
(b) amphibians and mammals
(c) birds and mammals
(d) reptiles and mammals
Ans. (b)

13. Which one of the following is the correct set of the bones in the hind limb of frog?
(a) Femur, tiblo-fibula, tarsals, metatarsal, phalanges
(b) Femur, ilium, ischium, pubis, phalanges
(c) Humerus, radio-ulna, ulnare, metacarnals, phalanges
(d) Humerus, scapula, coracoid, çlavile, phalanges
Ans. (a)

14. As compared to the pelvic limb, the pectoral limb is better suited to accommodate suspended weight because:
(a) the pectoral limb bears body with by a solid vertebral connection with the backbone
(b the pectoral girdle and limb have no skeletal connection with the adult skeleton in all the vertebrates
(c) a group of muscles attach the shoulder blade to the trunk in a fanned manner radiating in all directions
(d) the ligments of the shoulder joint are very highly developed and are good weight-bearing elements.
Ans. (c)

15. The correct course of food carrying water current in ascidian is
(a) Branchial siphon – Atrial cavity-> Pharynx-> Gill slits —> Endostyle -, Atrial siphon
(b) Branchial siphon -> Pharynx-> Gill slits – Atrial cavity —, Atrial siphon
(c) Atrial siphons-> Pharynx —> Gill slits —> Atrial cavity—> Branchial siphon
(d) Atrial siphon —> Endostyle —* Pharynx —> Gill slits —> Atrial cavity-> Branchial siphon
Ans. (b)