The Science Room Biology Content Standard 3.1 Name _______________________
Fill in the blank in each of the following statements.

1. The father of our modern system of classification is ______________________.
 
2. Bacteria reproduce asexually by _____________________________________.
 
3. All members of the plant kingdom are autotrophic, meaning _________________.
 
4. All members of the animal kingdom are heterotrophic, meaning _________________.
 
5. A phylogenetic tree shows a _________________________ about the relationships that exist among groups of organisms.
 
6. A branch on a phylogenetic tree shows where a ______________________ is separated.
 
7. A ____________________________ is any trace of a long-dead organism.
 
8. The study of the body structure of organisms is known as _______________________.
 
9. ________________________ is a system of classification that uses shared characters to establish evolutionary relationships.
 
10. Organs in different species that have the same basic structure are ________________.
 
11. Organs in different species that have different structure but perform the same function are ______________________________________.
 
12. The study of the internal workings of an organism is called _____________________.
 
13. The human body has __________________(a number) organs systems.
 
14. The chemical formula for glucose is ____________________________.
 
15. List the seven groups of today's classification system in order, beginning with the largest: ______________________, ______________________, ______________________, ______________________, ______________________, ______________________, ______________________.
 
16. The length of a line on a phylogenetic tree indicates ________________, not length of time.
 
17. Cladistics assumes that organisms within a group are descended from ________________.
 
18. All chordates have a __________________________________, an early endoskeleton.
 
19. There are _________________ (a number) classes of vertebrates.
 
20. The endoskeleton of sharks is made of _____________________________.