VERIFIED WAEC GCE 2015/16 BIOLOGY PRACTICAL ANSWERS

               BIOLOGY PRACTICAL ANSWERS

(1ai)
I-flower
II-hypocotyl
III-stem
IV-margin
V-midrib
VI-node/leaf stalk
VII-inflorescense
VIII-leaf

(1aii)
I-it carries out reproduction
II-it provides a space for the growth of flower
V-holds other part of the leaf together
VIII-aids the absorption of sunlight ie the
photosynthesis

(1bi)
A-Monocotyledon
B-Dicotyledon

(1bii)
A
-it has one seed leaf
-it has a parallel vein

B
-leaf has net vein
-it has two seeded leaf
1c)
A-rice,oil palm
B-groundnut,cowpea,mango
1di)
-A has parallel vein while B has net vein
-A has one seed leaf while B has two seed
leaves
-A has vibrous root while B has tap root
-A has the female and male parts of the
flower
at
different part while B has both the male and
female
parts at the same part of the flower
-A is a grass with long and narrow leaves
while B is a
legume with broad leaves

1dii)
-They are both flowering plants
-They are both seed plants
-They are both vascular plants

2a)
Food web

2b)
Producer(grass)
->primary consumer(cane
rat,grasshopper,mouse)
->secondary consumer(fox,lizard,snake)
->tertiary consumer(man,hawk,Eagle

2c)
I-The population of the lizards will increase
II-More energy would be passed into the chain
in
the web containing grasshopper,lizards,hawk
and
man
III-Less energy might be available to mouse
I-The population of lizards would decrease
II-Less energy would be passed into the chain
containing lizards
III-more energy would be available to mouse
and
cane rat

2d)
-Grass->mouse->snake->eagle->man
-Grass ->mouse ->Hawk->man
-Grass->mouse->snake ->eagle