Describe the most likely reason why scientists orginially classified elephant shrews with the shrew.
1
1
1
1
1
1
1
1
1
Question 1
1.
Question 2
2.
Question 3
3.
Question 4
4.
Question 5
5.
Question 6
6.
Question 7
7.
Question 8
8.
Question 10
10.
Question 11
11.
Question 12
12.
Question 13
13.
Question 14
14.
Question 15
15.
Question 16
16.
Question 17
17.
Question 18
18.
According to the cladogram, what trait separates the worm and the spider?
A. curly antennae
B. crushing mothparts
C. legs
D. segmented body
What trait is unique to grasshoppers?
A. Double set of wings
B. Segmented body
C. Legs
D. Jumping legs
According to the cladogram, do ants have 6 legs?
yes
no
What trait is shared by all the organisms on the cladogram?
A. Segmented body
B. Curly antennae
C. Has wings
D. Legs
What trait is unique to butterflies?
A. Double set of wings
B. Curly antennae
C. 6 legs
D. Segmented body
Click on all the traits that an ant has.
segmented body
legs
6 legs
crushing mouthparts
jumping legs
wings
double set of wings
Accordring to the cladogram, which organism is most closely related to the butterfly?
ant
grasshopper
dragonfly
worm
According to the cladogram, do
grasshoppers have crushing mouthparts?
yes
no
Using the evolutinoary tree, elephant shrews are most closely related to
A. aardvarks
B. rodents
C. elephants
D. manatees
Using the evolutinoary tree, shrews are most closely related to
A. aardvarks
B. rodents
C. elephant shrews
D. manatees
What information would provide the best evidence that two species are related?
A. habitat
B. appearance
C. diet
D. DNA (genes)
Elephant shrews and shrews have similar body structure because they live in the same environments but they are not closely related. What type of evolution is this an example of
A. punctuated
B. gradualism
C. divergent
D. convergent
What trait is unique to mammals?
A. Feathers
B. Amniotic Egg
C. Legs
D. Mammary Glands
What trait separates fish from amphibians?
A. Feathers
B. Amniotic Egg
C. Legs
D. Mammary Glands
What trait is unique to birds?
A. Feathers
B. Amniotic Egg
C. Legs
D. Mammary Glands
According to the cladogram birds are most closely related to
A. Mammals
B. Fish
C. Reptiles
D. Amphibians
Scientists compared the embryos of fish, amphibians, reptiles, birds, and mammals to construct this cladogram. Comparing embryos can be used as evidence for evolution.