Science Homework Help

Science Homework Help. Dixie State University Five Mechanisms of Evolutionary Change Biology Exam Study Guide

 

hello I have a exam study guide that I need help with I have included the instructions and questions down below.:

Use one to two pages to answer each objective. Responses must have a minimum of one paragraph and must be typewritten/word-processed except for the diagrams, which must be neatly drawn; essays can be single- or double-spaced. Using more than two pages for a response will result in a one point per extra page penalty. Answer at least ten objectives, but no more than twelve; a thirteenth essay will not be graded! Students must answer #2; if this question is not attempted, one point will be deducted from the total score.

1.) Compare and contrast hypotheses, theories, paradigms, and laws and give an example for each, including the paradigm for biology.

2.) Name and define the five mechanisms of evolutionary change. Provide an example of each mechanism. Compare one aspect of the evolutionary mechanisms, such as which are random or nonrandom (Required!).

3.) Describe stabilizing selection, directional selection, and disruptive selection, and identify which one(s) may be responsible for the long periods of stasis observed in the fossil record.

4.) Compare and contrast speciation by geographic isolation with speciation by polyploidy; give an example of each.

5.) Describe at least three mechanisms of DNA exchange in prokaryotes; identify which is most likely to spread antibiotic resistance and which ones are used in biotechnology.

6.) Compare and contrast Archaea, Bacteria, and Eukaryotes.

7.) Outline the classification system for the Eastern Gray Squirrel, beginning at the domain level and ending at the species level.

8.) Diagram or summarize how HIV infects host cells and indicate the steps of the process that can be attacked by current HIV treatments; include the names of the classes of drugs involved.

9.) Explain why the influenza virus’s complex envelope and ability to recombine necessitates the production of a new flu vaccine every year.

10.) Outline or diagram the classification system for prokaryotes.

11.) Compare and contrast gram-positive and gram-negative bacteria, including cell wall and flagella structure.

12.) Name ten diseases, five caused by viruses and five by bacteria, and identify the organism for each.

13.) Sketch a compound scope and a dissecting scope. Label at least ten features of each.

Science Homework Help