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Edu : Waec Biology Pratical Expo Answers

Views: 1311 Posts: 0 Started By: oladamats Last Poster: steviano Last Post Date: Apr 16, 2018
Apr 14 ( Post 1 )



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BIOLOGY SOLUTIONS
BIOLOGY ANSWERS
=================
2a)
A- Fish
D- mammal
E- flowering plant
2aii)
they are used for respiration
2aiii)
i)possession of two rows of fine finger like filament
ii)possession of gill rakers
iii)possession of richly supplied blood capillaries
2b)
i)they both are supplied with capillaries
ii)both of them are used for respiration
2bii)
Tabulate
specimen C
i)gill arch is present
ii)gill filament is present
iii)gill rackers are present
specimen D
i)gill arch is absent
ii)gill filament is absent
iii)gill rackers are absent
============================

(4)
(ai) Sepals, Petals, Carpels and Stamens
(ii) Sepals - 5
(iii) Petals - 5
(iv) Carpels - 1
(v) Stamen - 10

(4bi) Sex - monoecious
(ii) presence of both Carpels and Stamens

(4c)
i - Bilateral
ii - it can be cut vertically into two similar halves through one plane

(4d)
K - insect
L - wind

=============================
1ai)
A- lives in stagnant water
B- lives in Leftovers food
1aii)
A- into mosquito
B- into fly
1aiii)
A-arthuropoda (phylum insecta (class)
B-arthuropoda (phylum insecta (class)
1bi)
specimen A
i)it has bristles
ii)it has horny jaw
iii)it has siphon
1bii)
specimen B
i)it has a hook
ii)it has mouth
iii)it has spiracle
1ci)
tabulate
Specimen A
i)presence of eye
ii)walking pad absent
iii)bristle present
iv)antenna present
v)siphon present
specimen B
i)absent of eye
ii)walking pad present
iii)bristle absent
iv)antenna absent
v)siphon absent
1cii)
i)both are have segment body
ii)they have breathing organ
iii)they both under go complete metamorphosts











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