Posted on: 11:50 Mon, 05 Sep 2016



BIOLOGY PRACTICAL QUESTION AND ANSWER IS OUT KINLDLY CLICK ON THIS ABOVE IMAGE LINK TO VIEW THE ANSWER NOW

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Monday, 5th September, 2016
Biology 3 (Alternative to Practical
2.00pm – 4.00pm ++++++++++++++++++++++++++++++++++


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1a)
(i)Onion bulb
(ii)Bulb
(iii)It has a swollen stem
(iv)

I-Membraneous leaves
II-Outer scaly leaves
III-Thick fleshy storage leaves
IV-Auxillary buds
V-stem
VI-Roots
v)It is stored in the fleshy leaves
vi)
II-It protect the inner leaves
III-It stores food for the plant
VI-It absorbs nutrients from the soil

(1b)
(i)Epicarp
(ii)Mesocarp
(iii)Endocarp
(iv)Hollow containig water

i-protects the seed and makes fruit to float on water
ii-makes the fruit to be bouyant in water during dispersal

*Fleshy drupe
-It is fleshy
-It consists of epicarp,mesocarp and endocarp ie thin epicarp,fibrous mesocarp
*Palm nut,mango
*water,man

vii)
-It is used as food for man
-It is used as an ornament plant
It is used for making oil
-The fibrous mesocarp is used for cooking

(2a)
-phylum-Arthropods
-class-insect

(2)
-They have 3 pairs of jointed legs.
-There thorax consist of 3 segment
- They have spiracle on the their abdominal segment

(2bii
-they have pairs of compound eyes
-There body is divided into 3 segment
-They have wings
-They respiral by means of stratus system

(2C.
E and G (Male)

-this is due to the presence of the anal style

(2d)
i)D has anal style while G does not
ii)The terminal end of G's abdomen is modified into a boat like structure for carrying egg case
iii)D has larger antennae

(2e)
i)D has wings for flight and escape production
ii)F is smaller and could hide easily in crevices

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(4ai)
I-Foilage leaf
II-Epicetyl
III-Tap root
Iv-Routlets
V-Split testa
VI-Radicle
VII-Cotyledon

(4aii)
I-It is the primitive leaf which manufactures food for the seedling
II-It functions as the primitive stem for seedling
V-It protect the inner parts of the seedling before germination
IV-It absorbs nutrients from the soil
VII-It provides food for germination
VI-It grows to form the root of the seedling

(4bi)
Epigeal germination

(4bii)
Cowpea,groundnut,castor

(4biii)
-The seed requires warmth,water,viable seeds etc for germiation
-The seed absorbs moisture and become swollen
-The seed splits ,the radicle grows to form the root while the plumule form the shoot

(4ci)
It is carried above the soil level as a result of elongation of the epicotyl

(4cii)
Cotyledon

(4ciii)
Carbonhydrate

(4d)
-Viable seeds
-Warmth
-Moisture
-Enzymes
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