Bio 102 Exam #1-Questions and Answers Graded A+
Bio 102 Exam #1-Questions and Answers Graded A+ Whats the estimated age of the evolution of the oldest, first prokaryotic cell? - ANSWER-3.5 billion years ago What is the etymology of the word science - ANSWER-knowledge What is the etymology of the word biology - ANSWER-study of life What is the etymology of the word zoology - ANSWER-study of animals How does a theory differ from a hypothesis? - ANSWER-A theory has been tested numerous times and explains broader natural phenomenon Hypothesis is much more narrower - still needs to be tested A theory has more evidence supporting it than a hypothesis What 4 scientific techniques are used for phylogenic analysis to determine the evolutionary relationship among species? - ANSWER-1. comparative anatomy 2. comparative cytology 3. comparative embryology 4. comparative biochemistry What is cladistics? - ANSWER-classification based on common ancestry What is metamerism? - ANSWER-serial repetition of segmental arrangement of body parts What is cephalization? - ANSWER-concentration of sense organs, nervous control, etc., at the anterior end of the body, forming a head and brain, both during evolution and in the course of an embryo's development. What is Brownian motion? - ANSWER-random movement of particles What is the source of energy that drives Brownian motion? - ANSWER-Thermal energy What were probably the first simple biomolecules to arrive on Earth? - ANSWER-RNA? How is having a true coelom advantageous versus not having a coelom? - ANSWER-A true coelom is lined on all sides by mesoderm which gives rise to muscles that surround the gut as well as underlying the body wall. This allows more efficient digestion because food can be pushed through the digestive tract by muscles. What is a ribozyme? - ANSWER-an RNA with enzymatic activity
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- Subido en
- 29 de marzo de 2024
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- 2023/2024
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