NAME:
DATE: February 15,2023
This handout supplements the short film
The Origin of Species: The Beak of the Finch
.
1.
Different finch species have beaks of different shapes and sizes. These different
beak structures are evidence of _________
a.
different finch species adapting to different environments over many
generations.
b.
different finch species with different beak structures coming to the Galápagos
Islands from the
mainland.
c.
different finch populations being evolutionarily related.
d.
individual birds changing their beak characteristics so that they could feed
efficiently.
2.
Which experimental data from the film provide the best evidence that the cactus
finch and the medium ground finch on Daphne Major are distinct species? __________
a.
Many more medium ground finches than cactus finches died in response to
the drought.
b.
Cactus finch and medium ground finch males attempted to breed only with
females of their own
species.
c.
The cactus finch and medium ground finch feed on different types of food.
d.
Medium ground finch and cactus finch females have different markings and
feather color.
3.
Which of the five statements below describe(s) geographically isolated populations?
Select the appropriate answer, a–d. __________
i.
The two populations live on different islands.
ii.
One population breeds in late spring and the other population breeds in
late summer.
iii.
One population eats mostly small, soft seeds and the other population
eats mostly large, hard seeds.
iv.
The males of one population have different mating calls than the males of
the other population.
v.
The females of the two populations look the same.
a.
statement i only
b.
statements i and iv only
c.
statements ii, iii, and v only
d.
statement iv only
4.
Which of the five observations below provide(s) evidence that two populations are
likely experiencing reproductive isolation and that there is little if any genetic exchange
between them? Select the appropriate answer, a–d. ________
i.
The two populations live on different islands.
