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Which of the following is an example of a vestigial structure?
mold
Carbon dating
genetic evidence
a whale's hind legs
cast
artiodactyl (even-toed mammal)
have different internal structures, but are used for the same purpose.
a human arm and a sea turtle’s front flipper
A __________ is formed when an organism is buried in sediments and the sediments change into rock.
mold
Carbon dating
genetic evidence
a whale's hind legs
cast
artiodactyl (even-toed mammal)
have different internal structures, but are used for the same purpose.
a human arm and a sea turtle’s front flipper
William discovered that two modern-day species have very similar DNA. He concludes that the two species are closely related. What type of evidence did William most likely use to reach his conclusion?
mold
Carbon dating
genetic evidence
a whale's hind legs
cast
artiodactyl (even-toed mammal)
have different internal structures, but are used for the same purpose.
a human arm and a sea turtle’s front flipper
Scientists can measure the actual age of a fossil or rock by a method called
mold
Carbon dating
genetic evidence
a whale's hind legs
cast
artiodactyl (even-toed mammal)
have different internal structures, but are used for the same purpose.
a human arm and a sea turtle’s front flipper
DNA evidence suggests that whales’ and hippos have a common ancestor. According to this evidence, the most recent common ancestor was a(n)
mold
Carbon dating
genetic evidence
a whale's hind legs
cast
artiodactyl (even-toed mammal)
have different internal structures, but are used for the same purpose.
a human arm and a sea turtle’s front flipper
Sometimes organisms decay and leave a cavity. When the cavity fills with sand or mud and hardens, it is called a
mold
Carbon dating
genetic evidence
a whale's hind legs
cast
artiodactyl (even-toed mammal)
have different internal structures, but are used for the same purpose.
a human arm and a sea turtle’s front flipper
Analogous structures…
mold
Carbon dating
genetic evidence
a whale's hind legs
cast
artiodactyl (even-toed mammal)
have different internal structures, but are used for the same purpose.
a human arm and a sea turtle’s front flipper
Which of the following pairs is an example of homologous structures?
mold
Carbon dating
genetic evidence
a whale's hind legs
cast
artiodactyl (even-toed mammal)
have different internal structures, but are used for the same purpose.
a human arm and a sea turtle’s front flipper
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