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NECO Biology 2017 OBJ & Theory/Essay Questions and Answers Expo

NECO Biology 2017 OBJ & Theory/Essay Questions and Answers Expo

NECO Biology 2017 OBJ & Theory/Essay Questions and Answers Free Expo - Complete NECO  Hausa Obj/Theory Answer 2017 Expo/Runz

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Complete Verified NECO 2017 Biology (Obj & Theory Answer/question) - NECO Free 2017/2018 Biology Theory Questions and Answers have been posted FOR FREE, 2017/2018 NECO Biology ANSWERS EXPO NOW AVAILABLE.


Exam Date: Tuesday 13th June 2017

  1. Practical: Biology – 10am – 12pm
  2. OBJ & Essay – Building Construction – 2pm – 4pm
  3. OBJ & Essay – History – 2pm – 5pm

Presently, Answers on this page are related to the just concluded WAEC 2017 Biology OBJ & Theory/Essay QUESTION AND ANSWERS Free Expo. However, NECO Biology 2 (Essay) and Biology 1 (Objective) past question and answer is available below.

WARNING: These are not the current 2017 Biology Answers. The answers are for past questions from previous NECO exam. Do not use them as expo because it will be at your own decision.

NECO Biology OBJ Questions and Answers (Not Expo)

1-10 ABDBCDCBBD
11-20 CDBDCBBABA
21-30 CBCCDBCDDC
31-40 CBAADCCABA
41-50 CABADDDBDC

NECO Biology Theory/Essay Questions and Answers (Not Expo)

Question 1ai)
Classifications of living things consists of placing together in categories those living things that resembles each other. It involves placing living things into groups that have certain features in common which distinguish them from other groups

Question 1aii)

  • Car von Linnè Also known as Carolus Linnaeus


Question 1aiii)

  1. Classification is important because it allows scientists to identify the organisms
  2. Classification is important because it makes it easy for scientists to group the organisms.
  3. It is also good to properly name organisms via a standardized system


Question 1aiv)
Kingdom

  1. Phylum (Animal) or division (Plant)
  2. Class
  3. Order
  4. Family
  5. Genus
  6. Species





Question 1bi)

  1. Vírus can reproduce when present in another living cell
  2. It possesses characteristics which can be transmitted from one generation to the next


Question 1bii)

  1. When a virus is extracted from a living cell and placed in a non living medium, it assumes a crystalline form and thus become non-living
  2. Virus cannot respire, excrete or respond to stimuli


Question 1ci)

  1. Rosette disease
  2. Cassava mosaic disease


Question 1cii)

  1. Chicken Pox
  2. Polio


Question 2a)

  1. They catalyse reactions by lowering the activation energy of a reaction
  2. They are regenerated after each reaction
  3. They are substrate specific, hence only molecules which are complementary to their shape can bind to it.
  4. They aid in metabolism (anabolism and catabolism)


Question 2bi)

  1. Pancreatic lipase
  2. Amylase
  3. LIPASE-fats and oil
  4. TRYPSIN-proteins and peptones


Question 2biii)

  1. STARCH=maltose
  2. PROTEIN=polypeptides
  3. FAT AND OIL=fatty acids and glycerol


Download History Complete Expo Answer Here


NECO History 2017 OBJ & Theory/Essay Questions and Answers Expo


Question 2c

  • It helps to trap the energy in sunlight for the photolysis of water in photosynthesis


Question 2cii)

  1. magnessium
  2. Iron
  3. nitrogen


Question 2ciii)

  1. Magnessium-yellowing of leaves
  2. Iron-leaf chlorosis
  3. Nitogen-yellowing of leaves


Question 2d)

  1. Boil the leave to kill the leaves,inactivate the enzymes and burst starch grains.
  2. Dry in 70% alcohol to decolourise the leave
  3. Dry the leaf in hot water to soften it
  4. Place on a whole tile and add few drop of iodine solution
  5. The leave turns blue-black if starch is present


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Question 4a)

  • Draw the diagram between mother and father,under it write their possible blood group of the father are blood group A, B or O.


Question 4bi)

  1. Adaptive colouration
  2. Adaptive behaviour


Question 4bii)

  1. In order to invite are another for food or mate
  2. In order toalert or prevent one another against threat to life.


Question 6a)

  1. The odour diffuse in air and it is inhaled into the nose.
  2. The mucus helps dissolve the odour and it excites the sensory receptor in the nose
  3. The impulse is carried to the olfacory lobes of the brain where the message is interpreted

NECO Biology 2017 OBJ & Theory/Essay Questions and Answers Expo

Question 6b)

  1. Airspace-it is found in between the outer and inner membrane. It is important for respiratio
  2. Yolk- it supplied nutrients the embryo
  3. Chalaza- it hold the yolk and embryo in position within the alburnen
  4. Membranes-the membranes protect the egg
  5. Shell- it protects and aids respiration because it is porous
  6. Albumen-it is rich in protein for the nourishment of the embryo


Question 6ci)
An autotroph or producer, is an organism that produces complex organic compounds from simple substances present in its surroundings, generally using energy from light or inorganic chemical reactions.

Question 6d
Function of WHO

  1. Providing leadership on matters critical to health and engaging in partnerships where joint action is needed;
  2. Shaping the research agenda and stimulating the generation, translation and dissemination of valuable knowledge;
  3. Setting norms and standards and promoting and monitoring their implementation;
  4. Articulating ethical and evidence-based policy options;
  5. Providing technical support, catalysing change, and building sustainable institutional capacity;
  6. Monitoring the health situation and addressing health trends


NECO 2018 Biology OBJ & Theory/Essay QUESTION AND ANSWERS Free Expo Answers  Tuesday, 13th July, 2018. Complete Verified NECO 2017 Biology (Obj & Theory Answer/question)



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