BIOL1902 Exam Questions With Complete Solutions
2 layers of birds feathers Correct Answers Contour feathers,
down feathers
2 types of flocking Correct Answers • Single-species flocking -
when food is plentiful
• Mixed-species flocking (they group depending on how they
feed) - when food is scattered in different parts of the
environment
2 types of mammals' hairs Correct Answers Guard, underfur
4 Herps freezing Correct Answers • Gray Tree Frogs, Wood
Frogs, Spring Peepers, Chorus frog stay near the soil's surface
and freeze.
Acclimation Correct Answers a. The 1st stage is triggered by a
change in the photoperiod. Phytochromes: Light-sensitive photo
pigments > cause cells to go dormant and more responsive to
low temperatures
• Trees conserving their needles enable chlorophyl to use sun's
energy to create heat, no photosynthesize.
Active searching in predation Correct Answers Constantly
using the predation tool
Adpation/problems of endoparasites Correct Answers •
Adaptations/problems:
○ Small size
, ○ Parasitic Castration - altering the behavior of the host so that
it doesn't reproduce
○ Intermediate host might not be found
○ Wrong host might be entered
○ Host can die
Advertising for mating Correct Answers ○ Auditory - Vocal.
Ex: birds (Syrinx organ). Song has 2 main functions: 1.
advertising ownership of territory 2. Mate attraction. Some other
birds like Warblers have 2 different songs for the two functions.
○ Auditory - Vocal. Ex: toads/frogs (vocal sack), male
Bullfrogs have a large tympanum to hear.
○ Auditory - non-vocal/drumming. Ex: Woodpeckers, Ruffed
Grouse
○ Auditory - Winnowing. Ex: Snipes
○ Auditory - Stridulation (courtship sounds by rubbing wings
and/or legs together) EX: Crickets, Grasshoppers
○ Auditory - Crepitate. Ex: Band Wing Grasshoppers
○ Auditory - Tymbals on their underside to do mating sounds
on hot days. Ex: Cicadas
○ Auditory - Vocal. Ex: Female moose call the male and use
their woods to make sound
Aggressive mimicry Correct Answers animal using it's body as
a lure to attract its prey.
○ Ex: firefly
Allen's rule Correct Answers animals with shorter extremities
in cold temperature
, Aposematic coloration Correct Answers (when animals wear
bright colours to show they're poisonous)
Asexual vs sexual Correct Answers
Auditory adaptation for scanning Correct Answers ears,
membranes,
Autotomy Correct Answers process where an animal can lose a
part of its body
Autotrophic (plants producing their own food) Correct Answers
○ To function plants need: nutrients (nitrogen, phosphorus,
calcium)
○ The nutrients are found in different habitats. Bogs contain
numerous heat plants.
○ Heat plants have fungal partners associated their roots
(mycorrhizae) that provide them food.
○ Mycorrhizae are inside roots that give nutrients to plants and
help them survive in tough conditions. There is 2 types:
endoMycorrhizae (ex: Orchid) and ectoMycorrhizae (ex. Black
Spruce (tree)). Together they increase the uptake of nutrients
like Nitrogen and Phosphorus. They also prevent the uptake of
toxic compounds.
○ Root nodules are filled with bacteria that transform nitrogen
so that plants can use it for photosynthesis .
○ Some plants eat animals. Ex: Sundews eat mostly insects.
○ Sundews have modified leaves with sticky hair that will
slowly fold to digest the animal by injecting enzymes.
Technique is called ''adhesive traps''.
○ Butterwort also use adhesive traps.
2 layers of birds feathers Correct Answers Contour feathers,
down feathers
2 types of flocking Correct Answers • Single-species flocking -
when food is plentiful
• Mixed-species flocking (they group depending on how they
feed) - when food is scattered in different parts of the
environment
2 types of mammals' hairs Correct Answers Guard, underfur
4 Herps freezing Correct Answers • Gray Tree Frogs, Wood
Frogs, Spring Peepers, Chorus frog stay near the soil's surface
and freeze.
Acclimation Correct Answers a. The 1st stage is triggered by a
change in the photoperiod. Phytochromes: Light-sensitive photo
pigments > cause cells to go dormant and more responsive to
low temperatures
• Trees conserving their needles enable chlorophyl to use sun's
energy to create heat, no photosynthesize.
Active searching in predation Correct Answers Constantly
using the predation tool
Adpation/problems of endoparasites Correct Answers •
Adaptations/problems:
○ Small size
, ○ Parasitic Castration - altering the behavior of the host so that
it doesn't reproduce
○ Intermediate host might not be found
○ Wrong host might be entered
○ Host can die
Advertising for mating Correct Answers ○ Auditory - Vocal.
Ex: birds (Syrinx organ). Song has 2 main functions: 1.
advertising ownership of territory 2. Mate attraction. Some other
birds like Warblers have 2 different songs for the two functions.
○ Auditory - Vocal. Ex: toads/frogs (vocal sack), male
Bullfrogs have a large tympanum to hear.
○ Auditory - non-vocal/drumming. Ex: Woodpeckers, Ruffed
Grouse
○ Auditory - Winnowing. Ex: Snipes
○ Auditory - Stridulation (courtship sounds by rubbing wings
and/or legs together) EX: Crickets, Grasshoppers
○ Auditory - Crepitate. Ex: Band Wing Grasshoppers
○ Auditory - Tymbals on their underside to do mating sounds
on hot days. Ex: Cicadas
○ Auditory - Vocal. Ex: Female moose call the male and use
their woods to make sound
Aggressive mimicry Correct Answers animal using it's body as
a lure to attract its prey.
○ Ex: firefly
Allen's rule Correct Answers animals with shorter extremities
in cold temperature
, Aposematic coloration Correct Answers (when animals wear
bright colours to show they're poisonous)
Asexual vs sexual Correct Answers
Auditory adaptation for scanning Correct Answers ears,
membranes,
Autotomy Correct Answers process where an animal can lose a
part of its body
Autotrophic (plants producing their own food) Correct Answers
○ To function plants need: nutrients (nitrogen, phosphorus,
calcium)
○ The nutrients are found in different habitats. Bogs contain
numerous heat plants.
○ Heat plants have fungal partners associated their roots
(mycorrhizae) that provide them food.
○ Mycorrhizae are inside roots that give nutrients to plants and
help them survive in tough conditions. There is 2 types:
endoMycorrhizae (ex: Orchid) and ectoMycorrhizae (ex. Black
Spruce (tree)). Together they increase the uptake of nutrients
like Nitrogen and Phosphorus. They also prevent the uptake of
toxic compounds.
○ Root nodules are filled with bacteria that transform nitrogen
so that plants can use it for photosynthesis .
○ Some plants eat animals. Ex: Sundews eat mostly insects.
○ Sundews have modified leaves with sticky hair that will
slowly fold to digest the animal by injecting enzymes.
Technique is called ''adhesive traps''.
○ Butterwort also use adhesive traps.
