Neco 2016 Biology Obj & Theory Free Answers
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BIOLOGY OBJ:
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1ai) Morphological variation refers to the noticeable physical
appearance of individual of the same species . for example
in human beings morphological variation include, height of
the body , shape of the body etc
1aii ) pollination can be define as the transfer of pollen
grains from the another to the stigma of a plant
1iii ) niche : is a term that is used in ecological biology to
define an organism' s
role in an ecosystem .
1bii )
1. Both processes release energy
2. Both start with the breakdown of a nutrient ( glucose )
3. Both yield byproducts
1c) Ecological Niche refers to the specific portion of a
habitat which is occupied by a particular species or
organism
1ci)
----- Pterophyta
------ Anthophyta
------- Bryophyta
1cii)
---Embryo with two cotyledons
----- Flower parts in multiples of four
or five
---- Roots develop from radicle
---- Pollen with three furrows or
pores
=-=-=-=-=-=-=-=-=-=-=-=--=-=-=-=-=-=-=-=-=-=-=
2a)
DRAW THE DIAGRAM
2bi)
-They have two pairs of libs
-They have naked or moist and glandular skin with no external scales
-They carry out gaseous by gills,lungs,skin and mouth
-Reproduction is sexual
-They have poisonous gland for defence
-They have three chambered heart
2bii)
-Flowers are dull coloured
-Absence of scent
-Flower have small,incouspicious petals/sepals
-Pollen grain are small smooth light and not sticky
2biii)
-Possession of succullent stems by desect plant to enable them store excess water
-Possession of tiny and scanty leaves to reduce water loss through transpiration
-Possession of extensive root system for anchorage water absortion
••••••••••••••••••••••••••••••••
3aii)
mutation is the splitting of a cell into simpler ones which have the same characters and features of the bigger ones
3aiii) Gene are hereditary units or basic units of inheritance. They are located in chromosomes and are responsible for the transmission of character from parents to the offspring
3b)
The ray is reflected from the object into the pupil and iris.The rays travels through the cornea,lens,aqeous humour and vitreous humour and the image is formed on the retina.The image is then sent to the brain through the optic lobe of the brain
Conjuctiva->Cornea->Iris&pulpil->aqeous humour->lens->Vitreous humour->Retina->Brain
3c)
TABULATE
Amoeba:
-They have false foot
-They are parasitic
-They have singular nucleus
Euglena:
-They have flagella
-They are holozoic
-They have micro and mega nucleus
3cii)
-Proper sewage disposal
-Proper refuse disposal
-Control of disease
-Protection of food
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Verified Obj Answers Now Posted For Free
BIOLOGY OBJ:
1CBACAACCDC
11BDBCBBBBCD
21DDDAEAEEAA
31DABCDADCDE
41DCDBEECCCC
51ADBBDDDDAD
Answer Now Posted For Free, Click image below to unlock and view
Unlocking 100%
1ai) Morphological variation refers to the noticeable physical
appearance of individual of the same species . for example
in human beings morphological variation include, height of
the body , shape of the body etc
1aii ) pollination can be define as the transfer of pollen
grains from the another to the stigma of a plant
1iii ) niche : is a term that is used in ecological biology to
define an organism' s
role in an ecosystem .
1bii )
1. Both processes release energy
2. Both start with the breakdown of a nutrient ( glucose )
3. Both yield byproducts
1c) Ecological Niche refers to the specific portion of a
habitat which is occupied by a particular species or
organism
1ci)
----- Pterophyta
------ Anthophyta
------- Bryophyta
1cii)
---Embryo with two cotyledons
----- Flower parts in multiples of four
or five
---- Roots develop from radicle
---- Pollen with three furrows or
pores
=-=-=-=-=-=-=-=-=-=-=-=--=-=-=-=-=-=-=-=-=-=-=
2a)
DRAW THE DIAGRAM
2bi)
-They have two pairs of libs
-They have naked or moist and glandular skin with no external scales
-They carry out gaseous by gills,lungs,skin and mouth
-Reproduction is sexual
-They have poisonous gland for defence
-They have three chambered heart
2bii)
-Flowers are dull coloured
-Absence of scent
-Flower have small,incouspicious petals/sepals
-Pollen grain are small smooth light and not sticky
2biii)
-Possession of succullent stems by desect plant to enable them store excess water
-Possession of tiny and scanty leaves to reduce water loss through transpiration
-Possession of extensive root system for anchorage water absortion
••••••••••••••••••••••••••••••••
3aii)
mutation is the splitting of a cell into simpler ones which have the same characters and features of the bigger ones
3aiii) Gene are hereditary units or basic units of inheritance. They are located in chromosomes and are responsible for the transmission of character from parents to the offspring
3b)
The ray is reflected from the object into the pupil and iris.The rays travels through the cornea,lens,aqeous humour and vitreous humour and the image is formed on the retina.The image is then sent to the brain through the optic lobe of the brain
Conjuctiva->Cornea->Iris&pulpil->aqeous humour->lens->Vitreous humour->Retina->Brain
3c)
TABULATE
Amoeba:
-They have false foot
-They are parasitic
-They have singular nucleus
Euglena:
-They have flagella
-They are holozoic
-They have micro and mega nucleus
3cii)
-Proper sewage disposal
-Proper refuse disposal
-Control of disease
-Protection of food
Click below image for complete answers.
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