Category: Biology

Hi, There are 2 assignments from the same chapters but based on different topics. Unit 1.8,  and 1.9 has the questions of the assignment. I have also attached other pdfs that contain contents from the topic that you may need to complete the assignment. Please write the homework in APA Style where needed. And please provide citations and references where it is asked for.

The image below shows a picture of a cell in a light microscope. The total magnification of the cell is 450X. The ocular lenses were at 5X.
Based on the information provided, what was the magnification of the objective lens? (1 point)
What would be the total magnification of the cell if the objective lens was moved to 150X but the ocular lens was still the same (5X)? (1 point)
Look at the cell diagram shown below.
What cell type is this? Is it prokaryotic OR is it eukaryotic? How do you know? (2 points)
This cell was previously classified as a plant cell – but is now in its own category. What features does it have that led scientists to believe that this was a plant cell? (2 points)
This cell is no longer classified as a plant cell. What features are missing from this cell that are found in plant cells. (2 points)
Look at the images of the solutions shown below.
Of the three images (left, middle, right), which image shows a hypotonic extracellular fluid? (Hint: extracellular means outside the cell. extra ＝ outside). (1 point)
Of the three images (left, middle, right), which image will result in NO NET CHANGE of the cell’s size? (1 point)
Of the three images (left, middle, right), which image will result in a crenated cell? (Hint: crenated cells look shriveled). (1 point)
Of the three images (left, middle, right), which image shows a hypotonic intracellular fluid? (Hint: intracellular means inside the cell. intra ＝ within) (1 point)
Is this set of images displaying osmosis OR is this image displaying selective permeability? (You can answer this question if you have watched my videos explaining the differences). (3 points)

Write an 8-10page paper on Epidermolysis Bullosa. This should include the nature of the genetic mutation(s) behind the disease, Mendelian inheritance pattern, symptoms, diagnosis, prognosis, and the mechanism and symptomology of the resulting syndrome. Additionally, cover the availability and use of animal models for research, current treatments, prospects for DNA-based diagnosis and/or treatment by gene therapy, and the bioethics associated with the disease.

What you’re doing:
You will be using your purchased kit for growing algae for this particular assignment and preparing a laboratory notebook style write up. That will include an aerator, algae, culture vessel, and secchi disk. This is a low cost method for you to actually raise a viable live feed. Students will culture this species and document this in an online lab book and create a short reflection on the relevance of this experience.
Why you’re doing it:
This particular assignment relates to the course project in planning for the larval cycle of a finfish or if doing molluscs culture planning for larval nutrition.
What you need to know:
Before beginning this assignment, reflect on the positives and negatives of growing a live feed. Review Chapter 9.1.2 Microalgaes from the textbook (Aquaculture: Farming of Aquatic Animals and Plants). In this chapter they discuss culture methods and commercial production of algaes. 
(1) Algae Culture Kit and Growing SuppliesLinks to an external site.
(2) Secchi StickLinks to an external site.
This kit will include the method and supplies for anyone to grow Nannochloropsis an ecologically and industrially important strain of algae. It contains everything you need to grow a laboratory-grade culture at home or at your desk! It includes the following:
Instructions: information about the strain of algae, illustrated growing protocol, culture care lessons, life-cycle background of batch-culture cycles.
Culture flask: tissue culture flask (50 ml volume) with a breathable cap (included in the smallest kit only)
Culture inoculum: 1ml in a dense culture in a 1.5ml micro-centrifuge tube.
Nutrient Fertilizer: our nutrients are a modification of the media formula called f/2 (Guillard and Ryther 1962, Guillard 1975). It uses NaNO3 (sodium nitrate) and NaPO4 (sodium phosphate) as the nitrogen and phosphorus sources.
Culturing Salts: Add salts to a 500ml bottle of drinking water (water not included in the kit).
Using the directions from the kit you will set up the nutrient salt water
Instructions:
Students will culture  and provide evidence they have set up and cultured the organisms via an online lab notebook that they create. 
Section 1 picture of set up
Section 2 description of methods in step-by-step bullet points and variables related to algae growth(light provided, water type, salt, etc).
Students will measure the density of their algae cultures with a secchi disk by day and present data in table format. This is the best way to measure (turbidity) and a way to extrapolate cell density overall.
Students will reflect in a lab notebook conclusion on the use of this species of algae and its relevance to aquaculture.
This assignment will help you on the course project with thinking about your species profile and considering the larval nutrition stage of your culture or any special requirements needed for live food culture. Will your organism require a live feed at any stage of their life cycle? If not what feed is required for each stage. 
Rubric
Week 4 Assignment I: Growing a Live Feed
Week 4 Assignment I: Growing a Live Feed
Criteria Ratings Pts
This criterion is linked to a Learning OutcomeSet Up
Students will provide a picture of their set up.
10 pts
This criterion is linked to a Learning OutcomeMaterials and Methods
Students will describe their set up and all the variables they are trying to control for
10 pts
This criterion is linked to a Learning OutcomeResults of Their Live Algae Grown
Students will construct a data table by day that shows the density of their algae cultures with accompanying pictures as they grow.
20 pts
This criterion is linked to a Learning OutcomeConclusion
Students will formulate a conclusion and reflect on this experience addressing the role of live algae cultures in aquaculture.
30 pts
This criterion is linked to a Learning OutcomeSources
Outside sources relevant to the discussion are utilized and cited using APA style.
10 pts
This criterion is linked to a Learning OutcomeConventions of Writing
Uses correct grammar, appropriate terminology, and spelling.
10 pts
Total Points: 90

This is a case study assignment. I have added the pdf it tells exactly what to include and the topic for the assignment. PLease write in APA style, add citation and reference where needed. thanks

Initial Post
Due Date: 3 AM ET, Thursday
In this discussion, we will discuss some of the main issues with sustainability in aquaculture. What are some common criticisms of aquaculture and if you agree or disagree with them? You will find a headline from popular media and explore the criticism against the aquaculture industry. What are the facts they may be based on or that they distort? Post a negative headline about aquaculture. Analyze the article beneath the headline. This discussion board post should provide the headline, your analysis (is the headline based in fact?), your opinion, and how  the industry should respond.  Please add a link to the original article in your post. 
The following links are examples of the type of article you might use for your post: The Dangers of Industrial Ocean Fish FarmingLinks to an external site.  and Fish farms: Good, bad, or downright ugly?Links to an external site.

Hi, There are 4 assignments from the same chapters but based on different topics. Unit 1.3, 1.7, 1.8,  and 1.9 has the questions of the assignment. I have also attached other pdfs that contain contents from the topic that you may need to complete the assignment. Please write the homework in APA Style where needed. And please provide citations and references where it is asked for.

For this paper you will need to find two or more articles on global warming that look at the evidence for global warming due to green house gasses. You will also need to find two or more articles that suggest two alternative hypotheses for global warming or arguments against the evidence that suggests that global warming is due to greenhouse gasses (see the information on the linked page “Alternative explinations” off page 29 of the secton of the notes on Air Quality or PowerPoint note page 16 for help finding information on alternative hypotheses and arguments against the evidence).  The articles can come from newspapers, magazines, or off the Internet, but if you get articles from the Internet be sure they are from a reputable news organizations. In your paper, briefly explain the evidence for global warming due to greenhouse gases and the evidence for the alternative hypothesis or arguments against the evidence. Looking at what you have found out by doing this exercise, explain what you think. Is global warming due to greenhouse gasses or is the evidence for this insufficent or do other hypotheses explain the data better. Be sure to use information from the articles you read in your paper. Be sure your paper is well thought out and well written. Cite your references. 
Your paper should be about 3-5 pages typed, double-spaced, 12-point font, with 1-inch margins. Papers must be well-written and clearly thought out or they will not count. You may  use email attachment to submit your lab report. Please prepare the papers in Word format.  It is the student’s responsibility to make sure that all lab exercises are submitted on time.  Make sure you save your lab exercises on a computer disk or in hard copy in case they are lost.  Make sure you put the exercise number and your name on your lab exercise.

rédiger pour moi une bibliographie en francais selon le plan dans le fichier avec des références académiques et puis lister moi les références que tu utilise je veux yne bibliographie de 30 pages word

Please read the attached pdf for information on how to complete the assignment. It’s a biology  calculation assignment.