Biology 100 UNLV (Dr. Jeff Jaeger) Exam 1 Study Guide Questions with Verified Solutions
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Course
Biology 100 UNLV
Institution
Biology 100 UNLV
Biology 100 UNLV (Dr. Jeff Jaeger) Exam
1 Study Guide Questions with Verified
Solutions
**What defines life?**
- There is no definitive answer to what constitutes life.
**What are the 7 characteristics of living organisms?**
- 1. Adaptation and evolution
- 2. Maintaining homeostasis
...
Biology 100 UNLV (Dr. Jeff Jaeger) Exam 1 Study Guide Questions with Verified Solutions **What defines life?** - ✔✔There is no definitive answer to what constitutes life. **What are the 7 characteristics of living organisms?** - ✔✔1. Adaptation and evolution - 2. Maintaining homeostasis - 3. Responding to the environment - 4. Utilizing energy and materials - 5. Growth and reproduction - 6. Composed of cells - 7. Contains nucleic acids, proteins, carbohydrates, and lipids. **Where do all cells originate from?** - ✔✔All cells come from preexisting cells. **Define cells.** - ✔✔Cells are the smallest units of life. **Define atoms.** - ✔✔Atoms are the fundamental units of matter that cannot be further broken down. **Define molecules.** - ✔✔Molecules are the smallest fundamental units of chemical compounds. **Define unicellular.** - ✔✔Unicellular means consisting of a single cell. **Define multicellular.** - ✔✔Multicellular refers to organisms composed of trillions of cells. **Define metabolism.** - ✔✔Metabolism encompasses all chemical reactions occurring within the cells of living organisms . **Define homeostasis.** - ✔✔Homeostasis is the maintenance of a stable internal environment. **Define natural selection.** - ✔✔Natural selection is the proc ess where organisms inherit advantageous traits that enhance their reproductive success. **Define adaptive traits.** - ✔✔Adaptive traits are characteristics that help organisms survive and reproduce in their natural environment. **Linnaean taxonomic syst em.** - ✔✔From largest to smallest: Domain, Kingdom, Phylum, Class, Order, Family, Genus, Species. **Analogy for Linnaean taxonomy.** - ✔✔Do Kings Play Chess On Fine Gold Sand. **The three domains in Linnaean Taxonomy.** - ✔✔Bacteria, Archaea, Eukaryota. **Why are viruses not considered alive?** - ✔✔Viruses lack organelles, cannot synthesize proteins, and cannot reproduce independently. **What is the size of a virus?** - ✔✔Viruses are approximately 1/100th the size of a bacterial cell. **Domain of a brown bear.** - ✔✔Eukarya. **Kingdom of a brown bear.** - ✔✔Animalia. **Phylum of a brown bear.** - ✔✔Chordata.
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