The “circulatory” system of vascular plants compared to humans

This week we shifted our focus to our eukaryotic “cousins”, the plants. With that in mind, the discussion topic is designed to provoke some critical analysis of both systems. Pick one of the following topics and compare at least two major similarities and two differences between vascular plants and humans. 
*The “circulatory” system of vascular plants compared to humans
*The reproductive cycle of vascular plants compared to humans
*Organs or tissues of vascular plants compared to humans (you need to choose only one or two comparable tissue or organ types)
There is a second portion of this assignment that will force you to think about how plants affect our individual lives. In our day-to-day hustle and bustle, plants are typically overlooked for all that they provide for us. Simply stated, they are all too often taken for granted. With that being said, I would like for you to take the time to ponder just what plants have done for you. In fact, I challenge you to LIST and EXPLAIN at least ten ways in which plants in general or specific plants provide for you in your life and HOW they benefit or enrich your life. I encourage you to write your entry before reading any of your classmates’ posts to see if you can come up with any original ways plants affect you.

Don’t forget to back up your arguments with properly cited references. 

 

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Assignment Description & General Instructions

Assignment Description & General Instructions:

            The things left behind or thrown away can hold more information about the people doing the discarding then their cities and monuments.  While archaeologists of the early 20th century sought the tombs of kings, modern archaeologists place a greater focus on the homes and middens of the most common socioeconomic classes.  The trash of the common member of the culture is far more instructive than the tombs or houses of the economic elite.

For this assignment I want you to record everything your throw away for one week.   If you live in the dorms gather data on your roommate’s garbage as well.  If you are part of a household or live off campus record what is thrown away at your residence.  It is not necessary to take out your trash and go through it, but if you eyeball it and discuss with other people in your residence what they have discarded you should be able to obtain the needed information.  Then tell me, in an essay of at least 300 words, what you think your refuse says about you and possible those that you live with.

The interpretation is the tricky part and I often advise students to imagine the garbage belonging to someone else, perhaps a neighbor.  Then ask yourself some questions about the garbage and what it tells you.  It might also help to break up the information into three categories.  What does the garbage tell you about…

  • The culture in general.
  • Your specific domestic unit.
  • What doesn’t the garbage tell you?

 Here a series of more detailed questions to help you:

  • What does the refuse tell you about the household? 
  • Can you gauge the socioeconomic class of the household? 
  • Can you tell how many individuals were part of the household or if the refuse was even from a single household? 
  • What is the political or economic system of the culture? 

Put careful thought into your analysis.  I will be expecting you to be able to describe how the items of refuse provides the information you present as well as painting an image of the culture that created the refuse.  You should be careful not to overstate your data or give in to cultural bias or “assumed” knowledge.  Everything you say about your culture should be tied to specific items in your garbage.

Please include your list of things that were thrown away; though it does not count toward the minimum length requirement, it is necessary for me in order to grade your assignment.

 

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Why is the maintenance of homeostasis especially important during development of new humans within the bodies of their mothers?

The minimum length for this assignment is 1,500 words.

The maintenance of homeostasis is of major importance to all organ systems in the body and the overall survival of the individual. Explain how homeostasis is the maintenance of a dynamic range of environmental qualities rather than holding the internal environment at a set point. What would be wrong with a set point (say for body temperature) rather than a working range of temperatures?

The endocrine system is closely tied to homeostasis functioning. Give two examples of hormones (including their glands of origin and action) that play major roles in homeostatic processes in the body. What happens if these hormones are disrupted in their actions?

Also, look at how we adapt to survival in the outside world. Discuss how maintaining homeostasis gives us greater freedom of activity from dependence upon changes in the external environment. What happens during extremes that force our bodies out of homeostatic bounds? Give specific examples.

Why is the maintenance of homeostasis especially important during development of new humans within the bodies of their mothers? What can go wrong if specific homeostatic functions are disrupted?

 

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Provide two kinds of evidence that support the idea that life could have originated on earth.

PART I: SHORT ANSWER

Directions: Please answer each of the following questions.  Please ensure that your responses are at least 3 to 5 sentences in length.

1.      Provide two kinds of evidence that support the idea that life could have originated on earth.

2.      Why must the first organism of earth have been anaerobic?

3.      List two distinguishing characteristics of each of the following domains: Bacteria, Archaea, and Eukarya.

4.      Describe four kinds of evidence scientists use to place organisms into a logical phylogeny.

5.      List the four kingdoms of the domain Eukarya, and give two distinguishing characteristics for each.

6.      Describe how viruses reproduce.

7.      What is a thermophile?  A halophile?

8.      Name two beneficial results of fungal growth activity.

9.      List two ways that scientific names are different from common names for organisms.

10.    What taxonomic groups are included in the category known as microorganisms?

PART II: ESSAY

Directions: Write a 1 to 2 page, double-spaced paper in 12 pt. font in response to the following question.  Find one article using AAU’s LIRN (library) to use as support.  Please use APA format.  Please visit the Academic Resource Center for an effective guide on how use LIRN and for concise APA guidelines.

The Super bug

Many of you may have heard of the “super bug.”  The reason for its name is because many people take too many different forms of antibiotics for just about anything.  When people take too many antibiotics, it causes bacteria to become resistant to antibiotic agents.  As the bacteria become drug resistant, we are becoming more at risk for infections that we cannot cure.  Please read the article titled, “Resistance to Antibiotics: Are We in the Post-Antibiotic Era?”  Please provide your thoughts on drug resistance, and explain what you thought was an important fact from this article.

NOTE: A link to this article can be found in the Module 7 Homework Assignment Instructions page.

 

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A discussion of the role of the brain, nervous system, and sensory systems in shaping behavior

Hello Reliablewriter,

Write a paper of 1,000-1,250 paper that addresses the role of the brain, nervous system, sensory systems, and cognitive functions in shaping behavior. Include the following in the paper:

  1. A discussion of the role of the brain, nervous system, and sensory systems in shaping behavior
  2. A discussion of the role of cognitive function in shaping behavior
  3. A discussion of the interrelation of the brain, nervous system, sensory system, and cognitive functions in shaping behavior
 

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How does the brain, behavior, and the environment influence sexuality?

1.How does the brain, behavior, and the environment influence sexuality? Provide an example of this influence.

2.What is the relationship between heredity and aggression from a biological perspective? Include the hormones involved. Provide an example that demonstrates this relationship. 

 

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Microbiology and human health

Throughout the previous modules you have gained information on the methods used to distinguish different bacteria from one another. This activity serves to reinforce the concepts associated with biochemical tests, help you learn the metabolic strategies associated with individual or groups of bacteria, and strengthen your understanding of basic morphological differences. For this assignment, you are to choose one (1) of the groups, either A) oral/respiratory tract pathogens and commensals, or B) urogenital pathogens and commensals or C) gastrointestinal tract pathogens and commensals, and develop a key based on differential staining and culturing, morphology and the suite of biochemical tests available to identify bacteria.

A) Typical oral/respiratory tract pathogens and commensals –

Streptococcus pneumonia Yersina pestis
Haemophilus influenzaStreptococcus viridans
Staphylococcus aureusBacillus antracis
Klebsiella pneumoniaBordetella pertussis
Streptococcus pyogenesChlamydia pneumonia
Psuedomonas aeruginosaMycobacterium tuberculosis
Mycoplasma pneumoniae

M4A2: Project 1  (I chose the topic Pseudomonas)

Background

You are the science reporter for your local newspaper. Your editor asks you to write an article on a major topic within the general field of microbiology. He stipulates that in this article you need to include the following three things:

1.      An historical timeline for the major scientific discoveries that has led to our current understanding of the topic.

2.      A summary of our current understanding of the topic.

3.      A projection of where the next major advance or breakthrough in your topic will come from.

Description

For project 1 you will do your background research. Specifically, you will choose a suitable topic, identify appropriate resources, and generate a brief outline of the article which you will write for Project 2. Your topic must fall under the following subheadings:

·         Microbiology and human health

·         Microbiology and the environment

·         Microbiology and agriculture

·         Microbiology and industry

Procedure

1.      Consult your textbook to choose a topic under one of the four subheadings listed above. For example, from the area Microbiology and industry, you might examine the use of organisms by the alcoholic beverage industry. More specifically, are you interested in wine and the grapes that produce it? You could investigate the actions of a fungus called “noble rot” or the cultures involved in the fermentation of the grapes.  [Need help choosing a topic?]

2.      Email your topic to your instructor for approval.

3.      Once your receive instructor approval, do some background research on your topic to get more familiar with it.  Using the Credo Reference and/or Britannica Online: Academic Edition databases, find 1-2 articles/encyclopedia entries on your topic that will help you complete your Project 2 article.  You can access these databases from the Library’s Background Information page.

4.      Now that you have some grounding in your topic, find 5-6 peer-reviewed research articles that will help you complete your Project 2 article using the Library’s OneSearch tool.  OneSearch is found on the Library’s homepage.  Watch the OneSearch Tips video for assistance getting started.  [Note: In OneSearch you can limit your results to peer-reviewed journals.]

5.      You should now have a total of at least 7 sources to use for your Project 2 article.

6.      After reading the sources, think of the main points that you will cover and develop an outline for your Project 2 article. [Need help writing an outline?]

7.      In a single Word document, submit your outline and list of at least 7 sources (references) in APA format and place it in the appropriate assignment dropbox.  [Need help with APA format?]

 

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Ecological Interactions

Biology 102/103

Lab 7: Ecological Interactions

            INSTRUCTIONS:

·        Answer Sheet electronically and submit it via the Assignments Folder by the date listed in the Course Schedule (under Syllabus).

·        To conduct your laboratory exercises, use the Laboratory Manual located under Course Content. Read the introduction and the directions for each exercise/experiment carefully before completing the exercises/experiments and answering the questions.

·        Save your Lab 7 Answer Sheet in the following format:  LastName_Lab7 (e.g., Smith_Lab7).

·        You should submit your document as a Word (.doc or .docx) or Rich Text Format (.rtf) file for best compatibility.

 

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Could stem cells provide hope to spinal cord injuries?

Could stem cells provide hope to spinal cord injuries?

The Christopher and Dana Reeve Foundation states that:

“Stem cells hold promise for the development of effective treatments for a host of diseases and disorders. They are the primitive cells that give rise to different kinds of tissues in the body and they are “self-renewing” in the body and in the laboratory so that large quantities can be produced for medical purposes. Researchers are working on understanding the basic biological mechanisms of stem cells and aim to use these cells to help repair the injured spinal cord.”

Answer the following questions below, you may use other or additional sources to answer your questions (references cited are suggested).

1) What are stem cells?

http://www.christopherreeve.org/site/c.geIMLPOpGjF/b.1034091/k.3500/Stem_Cells.htm

2) What are spinal cord injuries? Why could they be so devastating?

http://www.ninds.nih.gov/disorders/sci/detail_sci.htm#80793233

3) How could stem cells affect the possible regeneration of a damaged spinal cord?

Use the above two links as your Citations

 

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