Worksheetsbio morning work
Total questions: 15
Worksheet time: 30mins
which one of the following is an adaption of external parasite?
loss of sense organs
possession of rudimentary digestive system
poorly developed reproductive system
presence of claws
which one of the following factors favour cross pollination?
stamens and carpels maturing at the same time
flowers remaining closed after maturation
stamens being situated below the stigma
style being shorter than the filament
soil with poor water retention ability has
low capillarity
small particles
poor aeration
poor drainage
which of the following hormones are both produced by gonads
testosterone and adrenaline
folicle stimulating hormone and thyroxin
progesterone and oestrogen
antidiuretic hormone and oestrogen
which one of the following is a characteristic of insect pollinated flowers
produce large quantity of pollen grains
are small and dull coloured
have large feathery feathers
their anthers are firmly attached
a person of blood feoup A can safely receive blood from a person of blood group
B and AB
A and O
A only
AB only
fungi are not classified as plants because
do not have proper roots
lack vascular tissue
lack chlorophyll
have rigid cell walls
which one of the following is completely reabsorbed from the kidney tubules during urine formation
water
glucose
urea
plasma protiens
which one of the following fins prevent rolling in fish
pectoral and pelvic fins
dorsal and ventral fins
caudal and ventral fins
pectoral and caudal
the following is a food chain in an aquatic habitat
algae —> mosquito larvae —> small fish —> carnivorous fish —> crocodiles
which one of the following changes would cause a reduction in the number of mosquito larvae
increase in the number of algae
increase of carnivorous fish
increase of crocodiles
decrease in the nulber of small fish
the structure that connects two bones together is the
cartilage
muscle
ligament
tendon
the advantage of cross pollination in flowering is that
eliminate overcrowding
creates variation among offspring
forms many offsprings
forms résistant varieties
a vertebrae with a long neural spine, short transverse processes and a small neural canal is called
thorasic
lumbar
cervical
caudal
A dense network of capillaries in the ileum serves to
increase the surface are for absorption of food
reduce the distance across which dissolved food moves
increase the tile food spends in the ileum
increase the rate of diffusion of food30
a plant leaf to be tested for starch is first dipped in hot water in order to
dissolve the starch
remove the chlorophyll
burst the starch granule
harden the leaf
