Patterns
This pattern is when one species develops into two species (from a common ancestor)
Divergent Evolution
What is the definition of evolution?
Answers may vary!
Gradual changes of heritable traits (from mom and dad) that help improve a species
The greater the similarity of _______________________ sequences, the closer the evolutionary relationship.
Amino Acid
An example of a structure that is homologous to a cat’s paw.
Answers may vary!
Ex./ Dog paw, human hand, bat wing, whale flipper
What is an example of a homologous structure?
Answers may vary!
Ex./ Human arm and whale arm
Ex./ Cat leg and horse leg
This pattern is when two separate species begin to share traits (NO common ancestor)
Convergent Evolution
During the early stages of development, the embryos of resptiles, birds, and mammals look very similar. This suggests that reptiles, birds and mammals are.....
________________ structures have different structures, but the same function.
Analogous
According to Darwin, evolution has occurred because of.....?
(This was last units topic)
Natural Selection
What is an example of a vestigial structure ?
Answers may vary!
Ex./ Human appendix, tail bone, wisdom teeth
Ex./ Whale pelvic bone
(The species coexists with on another)
Coevolution
What does the fossil record show through evoltuion?
Answers may vary!
Ex./ Fossils can give clues about how an organism looked and it can show connections between multiple organisms
A __________________ is a visual representation of the relationship between different organisms.
Cladogram
A diagram that shows the relationship between different organisms
What is an example of fossil evidence proving that evolution has occurred?
Answers may vary!
Ex./ The fossils of extinct organisms look similar to today's organisms showing that there may have been a common ancestor of multiple organisms
Similarities between sugar gliders in Australia and flying squirrels in North America are considers what type of evolution?
(They do not share a common ancestor)
Convergent Evolution
What are two different organisms who are alike and they share this in their bloodline?
Common Ancestor
A ____________ is any remains of a once living thing
Fossil
Is this statement true or false?
Divergent evolution commons from a common ancestor.
True
What is the study of embryo development called?
Embryology
Hawaiin Honeycreepers' variation in bill color and shape in relation to their diet and habitat is an example of what type of evoltuion?
(They evolved from the same common ancestor but into many diverse species)
Divergent Evolution
Name 5 reasons that there is evidence that has been discovered that show species have changed over time.
Fossil Records
Amino Acid/DNA relevance
Vestigial structures
Homologous structures
Analogous structures
Embryology
Cladogram correlation
A _____________________ structure is a small leftover organ or structure that had a function in an early ancestor.
Vestigial
Where does Ms. Edwards work part time?
How do we know that chimpanzee's are the most closely related relative of humans?
Answers may vary!
Ex./ The amino acid sequence of humans and chimpanzees are almost exactly alike
Ex./ The bone structures are very similar