Which of the following is when scientists compare bone and body structures to determine evolutionary relationships?
A. Molecular Genetics
B. Embryology
C. Comparative Anatomy
D. Biogeography
B. Comparative anatomy
My DNA is contained within a nucleus and I have membrane-bound organelles. Which Domain do I belong to?
Options: Archaea, Bacteria, Eukarya
Eukarya
Which organism is most related to the European Otter?
American Badger
What are the two parts of a scientific name?
Genus species
Based on molecular genetics, which organism is least related to the human?
Red bread mold - most DNA differences
I am motile, multicellular, and a heterotroph. Which kingdom do I belong to?
Animalia
What characteristic does the lizard have that the salamander does not?
Claws or nails
Why can a classification system change?
New DNA evidence (why there are 3 Domains)
New species are discovered that do not fit the old system
Hip bones in whales and wisdom teeth in humans are examples of what type of structures?
Vestigial Structures - used by ancestors
I do not have a nucleus and live in extreme environments. My cells are unicellular. Which kingdom do I belong to?
Archaeabacteria
Is the mouse more related to the chimp or the pigeon? Explain why,
Chimp, more recent common ancestor, both have fur and mammary glands
When organisms move in or out of an area bringing in new traits, this is an example of ____________?
A. Genetic Drift
B. Natural Selection
C. Gene Flow
D. Mutation
Gene Flow
What type of structures are these? What do they tell scientists about the organisms evolutionary past?
Homologous Structures - indicate share a common ancestor
I can be unicellular or multicellular. I can make my own food or eat other things. I can also reproduce sexually or asexually. The only thing I have in common is my cells always have a nuclues.
What kingdom do I belong to?
Protista
Is the flea more related to the horsefly or the katydid? Explain why.
Horsefly, more recent common ancestor
A population of butterflies break off from the mainland population and fly to an uninhabited island. The new colony has a higher percentage of orange butterflies compared to the mainland. What is this an example of?
A. Genetic Drift
B. Natural Selection
C. Gene Flow
D. Mutation
Genetic Drift
Describe an example of analogous structures and what they tell scientists about their evolutionary relationship.
Bird wing and butterfly wing - both fly but different structures. No evolutionary relationship
Shark fin and whale fin - both swim but different internal structure
What are two differences between Plantae and Fungi Kingdoms?
Plants - Autotrophs, sexual reproduction, multicellular, some use seeds
Fungi - Heterotrophs, sexual or asexual reproduction, unicellular and multicellular, some use spores
What number is the most recent common ancestor of Megaloptara and Coleoptera?
#3 Neuropteroidea
Increased Cranial Capacity
Decreased Jaw Size
Bipedal locomotion
Use of Tools/Fire