Bio 100 Exam 1 UNLV Questions and
Answers
Characteristics of a living organism
✓ ~~~ 1. Composed of cells
✓ 2. Unique molecular structure
✓ 3. Respond to external environment
✓ 4. Maintain homeostasis
✓ 5. Require energy and raw materials
✓ 6. Grow and reproduce
✓ 7. Populations are capable of adapting and evolving
Categorizing life
✓ ~~~ 1. Domain (dumb)
✓ 2. Kingdom (kids)
✓ 3. Phylum (play)
✓ 4. Class (catch)
✓ 5. Order (on)
✓ 6. Family (freeway)
✓ 7. Genus (get)
✓ 8. Species (smashed)
Domains
✓ ~~~ bacteria, Archaea, Eukaryota
Bacteria and Archaea
✓ ~~~ - Microscopic single cell organisms
✓ - Have prokaryotic cell structure (no nucleus)
Eukarya
✓ ~~~ contain membrane-bound nucleus and internal compartments
Kingdoms of Eukarya
, ✓ ~~~ 1. Animal
2. Plant
3. Fungi
4. Protists (protozoans, algae, diatoms)
Categorizing the Brown Bear (Arctic Bear)
✓ ~~~ D: Eukarya
K: Anamalia
P: Chordata
C: Mammalia
O: Carnivora
F: Ursidae
G: Ursus
S: Arctos
Are viruses alive?
✓ ~~~ NO
Taxonomy of Human (Wise Human)
✓ ~~~ D: Eukarya
K: Anamalia
P: Chordata
, C: Mammalia
O: Primates
F: Hominidae
G: Homo
S: Sapiens
Theory
✓ ~~~ A collection of principles, supported by evidence, that explains some aspect or
phenomena of nature
Science method
✓ ~~~ -based on observations and measurements
-from observations comes questions
-from questions come hypothesis
-hypothesis is is tested through further observation or experiments
Hypothesis
✓ ~~~ A plausible explanation for a natural phenomena
Louis Pasteur
✓ ~~~ -created pasteurization
-spontaneous life = microscopic airborne microbes
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