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How to make your glo data browse faster.

Tue Apr 17, 2018 4:09 pm by Snows

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2018 Waec Possible Questions and answers for Biology Practical Specimens

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Emmi
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PostEmmi on Fri Apr 13, 2018 10:46 pm

Here on 9jatechs we shall give all necessary and vital tutorial for biology 2018 waec Specimen, read and study it for some may be your answers.  
These gives the clear picture  on how questions will be asked and how to answers the questions been asked. Study carefully and remember to hold the Specimens been  listed below. 




(a) Each candidate should be provided with the following groups of Specimens. 








Specimen A-  Mosquito Larva 
Specimen B-  Maggot
Specimen C-  Gill of fish
Specimen D-  Lung of animal 
specimen E-  water leaf
Specimen F-  wing of crockroach 
Specimen K-  flower of pride of Barbados 
Specimen M-  Hibiscus Flower 
Specimen L-   Guinea Grass 








==> A - - -  Mosquito Larva 
CLASSIFICATION OF MOSQUITO 
Kingdom -  Animalia
Habitat  -  Aquatic 
Phylum -  Arthropod
Class  -    Insecta 
order   -   Lepidoptera 
Metamorphosis -  Complete 
Stage -  Larva 




CLICK HERE TO SEE THE DIAGRAM OF MOSQUITO LARVA





OBSERVABLE FEATURES 
- possesses segmental Bodies
- three body division
- possess eye for sight 
- possesses antenna for feeling 




ECONOMICS IMPORTANCE 
- Source of food for fish
- it is use in the laboratory for experiment 
-Adult stage is a vector for malaria 




==>B - - -  MAGGOT 
CLASSIFICATION OF MAGGOT 
Kingdom  -  Animalia 
Phylum -  Arthropod 
Class -   Insecta 
Order-  Diptera
Metamorphosis- Complete
Habitat- Moist environment


CLICK HERE TO SEE THE DIAGRAM OF SPECIMEN B(MAGGOT)


OBSERVABLE FEATURES
- It is whitish in colour
-It is segmented 
- it has a pointed ends
-It has an Anterior and posterior Spiracle
-it has a proLegs 
  
ECONOMIC IMPORTANCE OF SPECIMEN B
- It helps in decomposition
- Source of food for fish
- It provides Nutrient for soil
- source of food for fowl




SIMILARITIES BETWEEN A & B 
- They both have segmented body
- They have breathing organs 




DIFFERENCES BETWEEN A & B


A


B


Has probosis


No Probosis


Has eyes


No eye


Has an antenna


No antenna


Three Body divisions


No body division


Smaller in size


Bigger in size


==>C - - -  GILL OF FISH 
Source - fish
Class-  Pisces 




CLICK HERE TO SEE THE DIAGRAM OF FISH GILL





CLASSIFICATION OF C
- it is well supplied with blood
- It is always wet
- It is a delicate cell
- it has large surface area to volume ratio 
- It has a ton cell








==> D - - -  LUNG OF ANIMAL 
Source -  Animal
CHARACTERISTICS OF D
as that of fish (Gill of fish) 




CLICK HERE TO SEE THE DIAGRAM OF LUNG OF ANIMAL





SIMILARITIES OF C & D
- They are used for gaseous exchange. 
- They are well supplied with blood
- They are always wet
- They are delicate cell. 


==> -E - - -  WATER LEAF (Talinum triangulae) 


- It is chcotyledonous plant
- It has net work variation. 
- it has tap root
-  It has ring vascular bundle. 
==> F - - - WING OF CROCKROACH 




CLICK HERE TO SEE THE DIAGRAM OF CROCKROACH WING





- It is use for flight
- it is not thick
- it has network variation


CLICK HERE TO SEE THE DIAGRAM OF SPECIMEN K



==> L - - - GUINEA  GRASS 


DESCRIPTION OF L
-it is monocotyledonous plant
- It has parallel variation
- It has fibrous root
- it has scattered vascular bundle


CLICK HERE TO SEE THE DIAM OF SPECIMEN M



NOTE : this is just for you to study, this are not the questions or answers for 2018 waec Biology Practical. 


CLICK HERE TO SEE THE DIAGRAM OF SPECIMENS A, B,C, D, E, F, L, K, M


NOTE: 


WHATSAPP 08065889844 FOR SURE WAEC BIOLOGY PRACTICAL QUESTIONS AND ANSWERS


Last edited by Emmi on Sun Apr 15, 2018 5:53 pm; edited 4 times in total
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Postdiamond on Sun Apr 15, 2018 12:55 pm

Sir I need the questions and answers please
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mose
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Postmose on Mon Apr 16, 2018 7:04 am

Thanks for your good work sir
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