chandler unified school district · web viewtaxonomy: the science of _____ and _____ organisms. we...
TRANSCRIPT
Classification Notes Outline.
1. How do scientists classify and identify organisms?
2. What are the reasons scientists do this?
3. Biological Species Concept: A _______________ ___________________ that interbreeds reproductively isolated
from other _______________.
4. Taxonomy: the science of _______________ and _____________________ organisms. 5. We use the “Linnaean” classification system, named after Carolus Linnaeus. .6. Species are grouped into successive level of hierarchy.
Taxa Example (dog)
a. D = (most inclusive)
b. K =
c. P =
d. C =
e. O =
f. F =
g. G =
h. S = (most specific)
7. The Linnaean System gives each species a unique, two-part ____________________ _____________
8. This is called _____________________ ________________________ .
9. Ideally, classification should be based upon _________________, that is _____________ characteristics that
have been inherited from a _____________ ________________.10. The Logic: The more recently two species have shared a common ancestor two things are assumed
a. The more __________________ they share
b. The more __________________ these ____________________ are.
11. What was once solely based on morphological similarities, now scientists see similarities on the molecular levels
using ___________ & ____________________.
12. Systematics is the scientific discipline of naming organisms. 13. Phylogeny is the:
14. Cladistics unites ______________ with ____________.
15. A phylogenic tree (or evolutionary tree) is a branching diagram that shows the ________________ relationships
among biological _____________ based upon:
16. The taxa joined together in the tree imply that they have descended from a __________________ ___________.
17. A cladogram is a diagram, used in _________________ which shows relationships among organisms.
18. The logic of establishing phylogeny in cladograms is based upon interpreting the evidence that establishes the relationships.
a. Morphological =
b. Molecular =
c. Molecular Clock =