1. Give 5 similar species with different characteristics. 2. Give examples on the reproductive isolating mechanisms (geographical isolation, behavioral isolation, mechanical isolation, gametic isolation, temporal or seasonal isolation)Note: example is in the photo attached 18:09146 25 275 ا ا = 90EXAMPLEHermine.ACTIVITY1. Research 5 similar species with different characteristics.- Frogs.ducks, crocodiles, salamanders, and toads. All are amphibians (can live onwater and land) but have different physical and behavioral characteristics.2. Give examples on the reproductive isolating mechanisms.MECHANISMSEXAMPLES1. Geographic Isolationhoopoe birds migrating into otherplaces, some spend their winter inSouthern Spain or Africa, some spendtheir winter in Britain• crocodiles moving due to division ofone large lake into various smallerlakes• subspecies of kabab squirrels thatwere separated on the north edge ifthe Amazing Canyon2.Behavioral Isolation• male manakin birds that has differentspecial dances in order to attract afemale mate (who chooses on whichtype of dancing they prefer)male frogs who have vocal sacs thatcan be used to amplify their specialcalls to attract a female mate (whochooses on which tone of singingthey prefer)3.Mechanical Isolationgalagos who can't mate because oftheir different variations of genitaliaa snail with tall, cone-shaped shellnot being able to reproduce with asnail with one with a short, disc-likeone4.Gametic Isolation• different marine species thatdischarge eggs and sperm into thewater which mixes independently,but doesn't form a zygote• red and purple sea urchins that sharea geographic range but cannotinterbreed as their gametes aregenetically incompatible5.Temporal or Seasonal Isolation• dendrobium orchids, where someopened at dawn and withered bynightfallmagicicada tredecim who emergesonly every 13 years, and magicicadaseptendecim that emerges every 17years, they can only have anopportunity to produce hybrids every22 yearsFowler toads (during late summer)and American toads (during earlysummer) who have different matingseasons MECHANISMS1.2.3.4.5.mechanisms.EXAMPLES

A species is a taxonomic unit that consists of organisms that can interbreed with each other and…

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1. Give 5 similar species with different characteristics. 2. Give examples on the reproductive isolating mechanisms (geographical isolation, behavioral isolation, mechanical isolation, gametic isolation, temporal or seasonal isolation) Note: example is in the photo attached

18:09
146 25 275 ا ا = 90
EXAMPLE
Hermine.
ACTIVITY
1. Research 5 similar species with different characteristics.
- Frogs.ducks, crocodiles, salamanders, and toads. All are amphibians (can live on
water and land) but have different physical and behavioral characteristics.
2. Give examples on the reproductive isolating mechanisms.
MECHANISMS
EXAMPLES
1. Geographic Isolation
hoopoe birds migrating into other
places, some spend their winter in
Southern Spain or Africa, some spend
their winter in Britain
• crocodiles moving due to division of
one large lake into various smaller
lakes
• subspecies of kabab squirrels that
were separated on the north edge if
the Amazing Canyon
2.Behavioral Isolation
• male manakin birds that has different
special dances in order to attract a
female mate (who chooses on which
type of dancing they prefer)
male frogs who have vocal sacs that
can be used to amplify their special
calls to attract a female mate (who
chooses on which tone of singing
they prefer)
3.Mechanical Isolation
galagos who can't mate because of
their different variations of genitalia
a snail with tall, cone-shaped shell
not being able to reproduce with a
snail with one with a short, disc-like
one
4.Gametic Isolation
• different marine species that
discharge eggs and sperm into the
water which mixes independently,
but doesn't form a zygote
• red and purple sea urchins that share
a geographic range but cannot
interbreed as their gametes are
genetically incompatible
5.Temporal or Seasonal Isolation
• dendrobium orchids, where some
opened at dawn and withered by
nightfall
magicicada tredecim who emerges
only every 13 years, and magicicada
septendecim that emerges every 17
years, they can only have an
opportunity to produce hybrids every
22 years
Fowler toads (during late summer)
and American toads (during early
summer) who have different mating
seasons

MECHANISMS
1.
2.
3.
4.
5.
mechanisms.
EXAMPLES

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ISBN:

9781938168130

Author:

Kelly A. Young, James A. Wise, Peter DeSaix, Dean H. Kruse, Brandon Poe, Eddie Johnson, Jody E. Johnson, Oksana Korol, J. Gordon Betts, Mark Womble

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