Lesson 2

Question 1

Living systems share several characteristics

Answer 1

consist of cells
store and process information
transform energy
Grow and reproduce
Adapt and evolve

Question 2

Phenotype

Answer 2

Observable features

Question 3

Genotype

Answer 3

Organisms genetic material

Question 4

Classification of organisms

Answer 4

Facilitates the study of life
Facilitates communication between biologists
Has been heavily influenced phenotypic comparisons historically
Increasing based on genotypic comparisons
Associated with the fields of taxonomy and systematics

Question 5

Taxonomic ranks

Answer 5

1. Domain
2. Kingdom
3. Phylum
4. Class
5. Order
6. Family
7. Genus
8. species

Question 6

Phylogenetic tree

Answer 6

Shows the reduced evolutionary relationships among multiple species or taxa based upon similarities and differences in their physical and or genetic characteristics

Question 7

Prokaryotic organisms

Answer 7

Unicellular with minimal internal structure and no membrane bound internal compartments

Question 8

Eukaryotic

Answer 8

Unicellular or multicellular and possess cells with a highly structured interior
Nucleus
Several membrane enclosed compartments termed organelles

Question 9

Cell theory

Answer 9

All organisms are composed of cells
Cells are the smallest living things
Cells arise only from pre existing cells

Question 10

Living systems are organized into hierarchies

Answer 10

Cell
Organelle
Macromolecule
Molecule
Atom

Question 11

Unicellular organisms hieracrhy

Answer 11

Biosphere
Ecosystem
Community
Population
Organism (cell)

Question 12

Multicellular organism hierarchy

Answer 12

Organism
Organ system
Organ
Tissue
Cell

Question 13

Emergent properties

Answer 13

Result from interaction of components
Cannot be deduced by looking at parts themselves
The whole is greater than the sum of its parts
“Life”