Study sets, textbooks, questions
Upgrade to remove ads
Unit 2 lesson 6
Terms in this set (21)
Earth is inhabited by millions of different kinds of living things, or groups of organisms called?
What did Darwin argue about the descent of species?
They are all descended from a single ancestor.
Which species share traits that they inherited from their common ancestors?
How can the evolutionary relationships among groups of organisms like mammals, birds, and bony fishes be shown?
using an evolutionary tree
.The body structure of organisms is described by
How do scientists use anatomy to obtain information about the evolutionary history of organisms?
They compare organisms' anatomy and look for shared traits.
All arthropods, a group that includes spiders, insects, lobsters, and many other species, inherited which of these from their common ancestor?
all of the above
Why are limbs of different vertebrate species, with completely different functions, made up of the same bones?
Each species inherited the same limb bone arrangement from their common ancestor.
By comparing the fossils of extinct species with organisms living today, scientists can figure out
evolutionary relationships among species.
If scientists find a 50 million-year-old fossil that has the anatomical traits of a whale, what do they know?
Whales have most likely lived on Earth for at least 50 million years.
Fossils were especially important in uncovering the evolutionary relationship of which group?
Comparing the early stages of different species' ______ can provide evidence about how these species are related.
How do scientists know that certain flowering plants, including corn, rice, wheat, and onions, are closely related?
They all have embryos with a single cotyledon, or embryonic leaf.
The embryos of vertebrates share traits because
they inherited a specific pattern of early development from their common ancestor.
Which of these traits is NOT used to support evidence from embryos that vertebrate species are related?
arms and legs in human embryos
How can unrelated species share similar traits?
If they evolved similar adaptations through natural selection.
Sharks and dolphins sharing similar traits through adaptation to similar environments is an example of what?
Convergent evolution describes a ______ relationship.
cause and effect
Why can convergent evolution be misleading for scientists studying the evolutionary relationships among species?
It produces anatomical similarities in species that are not closely related.
What method do scientists use to accurately determine evolutionary relationships among species
They use many different types of evidence.
Evidence of common ancestry among species can be determined from
anatomy, embryos, and fossils.
Sets found in the same folder
unit 2 lesson 3
unit 2 lesson 4
unit 3 lesson 8
Other Quizlet sets
chapter 20, advanced makeup
AP Human Chapter 10 & 12
AGRON 375 exam 4