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100% confirm biology obj and theory answer by gurushood.com




WAEC 2016 BIOLOGY QUESTIONS AND ANSWERS NOW AVAILABLE FOR FREE
Tuesday 19th April 2016
BIOLOGY 2 (ESSAY ) 2.00PM � 3.40PM
BIOLOGY 1(OBJ) 3.40PM � 4.30PM

100% Waec biology obj and theory answer

BIOLOGY Obj
1-10 dcdacaccdc
11-20 ccbdadbbcd
21-30 dcbdddbacb
31-40 cdabbbbddb
41-50 dbcaabadbc

(1a)
-Single/independent free living organism eg amoeba
-As a colony eg volvox
-As a filament
eg spirogyra

(1b)
-Amoeba
-Volvox
-Spirogyra

(1ci)
-Plant cell are rectangular in shape while Animal cell are spherical in shape
-Plant cell contain chloroplast while animal cell do not contain chloroplast
-Plant cell contain cell wall while animal cell do not contain cell wall
-Plant cell nucleus is at the side while the animal cell is at the middle

(1cii)
-They both have nucleus
-They both have mitochondrion
-They both have endoplasmic reticulum

___________________________

(2a)
Mouth,Oesophagus,Stomach,Duodenum,Small intestine,Caecum,Appendix,Large intestine,Rectum,Anus

(2bi)
TABULATE
Alimentary canal of birds|Alimentary canal of man

-There is presence of crop|Crop absent
-There is presence of proventiculus|Proventiculus absent
-There is presence of gizzard|Gizzard is absent

(2bii)
-Both have caecum
-Both have Oesophagus
-Both have duodenum
___________________________
(2c)
Herbivore posses heterodant type of dentition in which they posses teeth of different shapes and sizes.Herbivores feed mainly on vegetable hence its teeth is 28 in numbers.Its incisors are flat with sharp cutting edges for cutting vegetables or grasses .canine is absent.the space creates due to absense of the canine is called diastema.
Diastema allows manipulation of grasses in the mouth.It has a very large molar and premolar closely packed and have very large ridged surface area for cutting and grinding

2d)
-They help in regulation of blood sugar by producing insuling and glucagon
-They help in digestion
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6d)
-High temperature affect evaporation and reduces performance
-High temperature may lead to seed dormancy
-It leads to loss of soil nutrients through evaporation
-It affects the ripening and maturity of plant
-it is necessary for germination of seeds
6ei)
Courtship behaviour refers to the instructive behaviour on response to certain external stimuli in animals.It is the pattern of behaviour that preceeds mating and reproduction in animals.It is performed by male and female organism
6eii)
-pairing
-Teritoriality
-Display
6f)
-Holozoic nutrition
-Amoeba
-Entamoeba histolytica
-Humans
6g)
Crime detection using finger print method: this applies to forensic.In this method,individuals having different finger print pattern can be identified using database of stored information of such individuals.These method correctly identifies such individuals aptly and is useful in crime detection
6a)
-Tactic movement movement is found in some plant and animals while nastic movement is found in plants alone
-Tactic movement rsponse to directional stimuli while nastic movement respond to non directional stimuli
6bi)
-Euglena
-Chlamydomonas
6bii)
-Mimosa plant
-Sunflower
6ci)
-Regular cleaning
-Exposure to fresh air
-Eating balanced diet
-Regular exercise
6cii)
-Temperature
-pressure
-Pain
-Cold
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Posted By Examlord On 03:46 Tue, 19 Apr 2016

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