UCF Evolutionary Biology
(ch.11) with 100% correct
answers ( graded A+)
Males and females differ in - answer size
coloration
shape
body ornamentation
Purple-throated Caribs (Eulampis jugularis) - answer -Females
have longer and more curved beaks than males
-prefer to feed on nectar from Heliconia caribea
-Males are larger, dominant, and do not allow females to feed
much on H. caribea
-males with shorter, straighter beaks for feeding on H. caribea
-females with longer, more curved beaks for feeding on H. bihai
Sexual selection increases - answer an individual's reproductive
success
sexual dimorphism usually results from - answer sexual selection
, If there is heritable variation in a trait that affects the ability to
obtain mates - answer variants conducive to success will become
more common over time
male variance in fitness is always - answer greater than female
variance in fitness
males have what size gametes - answer small
Females have what size gametes - answer large
Having # sexes >1 prevents mating with self - answer - generate
variable offspring
- inbreeding avoidance
Orangutans are solitary animals - answer -Male and female meet
for copulation
-Male leaves and female carries a fetus for eight months, then
cares for the infant for 8 years
Sexual selection is greater in - answer males
males should be - answer competitive
females should be - answer choosy
(ch.11) with 100% correct
answers ( graded A+)
Males and females differ in - answer size
coloration
shape
body ornamentation
Purple-throated Caribs (Eulampis jugularis) - answer -Females
have longer and more curved beaks than males
-prefer to feed on nectar from Heliconia caribea
-Males are larger, dominant, and do not allow females to feed
much on H. caribea
-males with shorter, straighter beaks for feeding on H. caribea
-females with longer, more curved beaks for feeding on H. bihai
Sexual selection increases - answer an individual's reproductive
success
sexual dimorphism usually results from - answer sexual selection
, If there is heritable variation in a trait that affects the ability to
obtain mates - answer variants conducive to success will become
more common over time
male variance in fitness is always - answer greater than female
variance in fitness
males have what size gametes - answer small
Females have what size gametes - answer large
Having # sexes >1 prevents mating with self - answer - generate
variable offspring
- inbreeding avoidance
Orangutans are solitary animals - answer -Male and female meet
for copulation
-Male leaves and female carries a fetus for eight months, then
cares for the infant for 8 years
Sexual selection is greater in - answer males
males should be - answer competitive
females should be - answer choosy
