Worksheetssem 4 21-22 unit 1
Total questions: 35
Worksheet time: 18mins
In Testudo which type of skull is present?
Anapsid skull
Parapsid skull
Synapsid skull
Diapsid skull
Roof of the skull is solid in…………
Anapsida
Parapsida
Synapsida
Diapsida
How many temporal vacuities are present in diapsida?
1
2
3
4
Body is enclosed in the dorsal carapace and ventral plastron in Chelonia.
True
False
Nictitating membranes are present in
Ophidia
Lacertilia
Crocodilia
Chelonia
In snakes, poison apparatus consists of
Poison glands
Poison ducts
Fangs
All the above
Fangs are specialized
Teeth
Ducts
Glands
None of the above
Fangs are attached to the ……….
Maxillary bones
Mandibular
Head
None of the above
Fangs are permanently erect in
Cobras
Viper
Sea snake
Krait
Biting mechanism occurs in which of the following sequence
Opening of mouth, Rotation of maxilla, Erection of fangs, Injection of poison, Closing of mouth
Rotation of maxilla, Erection of fangs, Injection of poison, Closing of mouth, Opening of mouth
Opening of mouth, Erection of fangs, Injection of poison, Closing of mouth, Rotation of maxilla
Opening of mouth, Rotation of maxilla, Injection of poison, Closing of mouth, Erection of fangs
Viper's venom is
Haemotoxic
Neurotoxic
Flightless birds are called as
Ratitae
Carinatae
Resident birds
None of the above
In Ratitae, the type of skull is
Palaeognathus
Neognathus
Both of the above
None of the above
Bones in carinatae are
Non pneumatic
Pneumatic
Poorly developed
Absent
Feathers in ratitae are without interlocking mechanism
True
False
Forelimbs are modified into wings in birds is
Anatomical adaptation
Physiological adaptation
Morphological adaptation
Not an adaptation
Body in birds is streamlined which
Reduces friction
Increases friction
Nothing to do with friction
Maintain a constant temperature
Functions of feathers in birds are
Insulation of body
Buoyancy
To maintain constant temperature
All the above
Endoskeleton of birds is adapted to give better
Flexibility
Firmness
Compactness
All the above
Wings in birds are lowered by
Pectoralis major
Pectoralis minor
Legs
Tail
…………….. type of excretion is seen in birds.
Urecotelic
Ureotelic
Aminotelic
Ammonotelic
How many ovaries are present in birds?
4
3
2
1
Migration helps birds avoid harsh climatic extremes.
True
False
When birds migrate from North to South and vice versa. This migration is called as
Altitudinal migration
Longitudinal migration
Latitudinal migration
Irregular migration
In Barn owls, Tyto alba, which type of migration occurs?
Altitudinal migration
Longitudinal migration
Irregular migration
Partial migaration
Tachyglossus is an example of
Prototheria
Metatheria
Eutheria
None of the above
Egg laying mammals are called as
Prototheria
Metatheria
Eutheria
None of the above
Ornithorhynchus is commonly called as
Spiny ant-eater
Kangaroo
Duck-billed platypus
Cow
Opossum is included in
Prototheria
Metatheria
Eutheria
None of the above
Bandicoots are
Mammals
Reptiles
Birds
Amphibian
Eutherians are
Marsupials
True placentals
Egg laying mammals
All the above
Embryos are kept in the uterus till an advanced stage of development attached to uterine wall by allantoic placenta. This is characteristic
feature of
Prototheria
Metatheria
Eutheria
None of the above
Dolphin is a
Mammal
Reptiles
Birds
Amphibian
Newly hatched young ones are very immature and feed on milk in abdominal pouch till fully developed. This is characteristic feature of
Prototheria
Metatheria
Eutheria
None of the above
Females are oviparous in both Prototheria and Metatheria.
True
False
