Category: Biology

You get a phone call that changes your life: your child or a relative’s child ha

You get a phone call that changes your life: your child or a relative’s child has been in a car accident. He has been taken to the hospital, but is unable to move his legs. Many times, having as much knowledge as possible on a medical topic better prepares you to talk to medical professionals. This is why we will dig deeper into learning about our body systems. In this discussion you will explore spinal cord injuries and their prognoses. You will need to conduct research and document your evidence.
You should spend approximately 4 hours on this assignment.
Instructions
Read the letter posted in your Exploration materials. Then, consider the following prompts:
Describe the process of nerve healing in peripheral nerves and the difference between central and peripheral nerves.
Explain how the nervous system grows with us and how that supports its function.
Suggest a reason why most neurons are amitotic.
Explain why neurons very rarely become cancerous.
Express how the symptoms mentioned in the letter demonstrate the connection between anatomy and physiology, based on injury location.
Provide insight into new research, perhaps with stem cells, and describe why specific new research may, or may not, be the answer to cure these injuries.
Discuss why a medical professional should never guarantee an outcome with a nervous tissue injury.
Search for, read, and summarize your answers to the questions using 1-2 journal articles, one book chapter, and/or two websites.
You can conduct research through the CCCOnline Library. If you go to the Library’s Research and Database resource page and select “Biology” from the Research Database Filters, you will see the many resources pertaining to biology to which the Library has access. Also, you can explore the curated resources that have been prepared specifically for the biology classes.
After researching the discussion topics, share with your classmates what you learned by writing an informational post responding to the questions (minimum of 300 words). Your initial post must include two sources cited in APA Style. Need help with APA? Please refer to the CCCOnline APA Citation Toolkit.

The goal of this lab exercise is to investigate and understand how planets orbit

The goal of this lab exercise is to investigate and understand how planets orbit the Sun. When you look up to the sky you might notice that some planets periodically move backwards. This is an apparent motion called retrograde motion and it does not reflect the real movement of the planets. We will not investigate retrograde motion but instead we will analyze the actual orbits of planets. The planetary motion simulator, an excel spreadsheet, is the basis for this exercise. Please, read the material carefully before you start the lab.

Hi. Please read all instructions in files, this is very important for me and my

Hi. Please read all instructions in files, this is very important for me and my grade as 20% of the final grade is from this internal assessment. To get familiar with what this is, please do research on google about IB. Please divide the research paper into sections as it is shown in the great example in files!! Also, if you can’t find anything about my example and suggestion as topic for the internal, you can do something a correlation between the thyroid gland with something, as my mom is struggling with thyroid so it shows engagement and interest and i can gain more points for that.

Can you please provide answers to these questions as quickly as possible within

Can you please provide answers to these questions as quickly as possible within 15 minutes?????? Thank you so much!

Can you please provide answers to these questions as quickly as possible within

Can you please provide answers to these questions as quickly as possible within 15 minutes? Thank you so much.

Hello please see the attached file for how the powerpoint should be structured ,

Hello please see the attached file for how the powerpoint should be structured , proffesrot emphasize using higlites in yellow for important information and other requirement also attached in the file.
I can provide you with a structured outline that you can use to create your presentation on H1 receptor agonists and antagonists. You can use this outline to build slides for your presentation.
Slide 1: Title Slide
Title: “H1 Receptor Agonists and Antagonists”
Subtitle: Understanding the Mechanisms and Applications
Slide 2: Introduction
Brief introduction to histamine and its role in the body
Mention of histamine receptors, with a focus on the H1 receptor
Overview of the importance of H1 receptor modulation
Slide 3: H1 Receptor: Overview
Structure and location of H1 receptors in the body
Physiological functions of H1 receptors
Importance in allergic responses and inflammation
Slide 4: H1 Receptor Agonists
Definition of agonists
Examples of H1 receptor agonists
Mechanism of action: How agonists stimulate H1 receptors
Clinical applications of H1 receptor agonists (e.g., antihistamines for allergies)
Slide 5: H1 Receptor Antagonists
Definition of antagonists
Examples of H1 receptor antagonists
Mechanism of action: How antagonists block H1 receptors
Clinical applications of H1 receptor antagonists (e.g., treatment of allergies and insomnia)
Slide 6: Dual-Action H1 Antagonists
Explanation of some antihistamines that have both anti-allergic and sedative properties
Pros and cons of dual-action H1 antagonists
Slide 7: Side Effects and Considerations
Common side effects of H1 receptor agonists and antagonists
Considerations for use, including contraindications and potential drug interactions
Slide 8: Emerging Research and Future Directions
Overview of current research on H1 receptors
Potential future developments in H1 receptor modulation
Slide 9: Conclusion
Summary of key points discussed
Emphasis on the significance of understanding H1 receptor modulation
Slide 10: References
List of references and sources used in the presentation
Remember to include visuals, diagrams, and relevant images to make your presentation more engaging. Each slide should have concise bullet points and should not be overcrowded with text. Adjust the content based on the time allotted for your presentation.

Submit your bulleted list for the organ system overview to the discussion topic.

Submit your bulleted list for the organ system overview to the discussion topic. You must include the key anatomical features, key physiological functions, and histology, as well as some interesting facts, findings, and health issues related to this system supported by appropriate citations. In response to your classmates’ posts on other systems, comment on their choices, research, and share a descriiption of at least one function that requires the interaction of both the system you have chosen and the system the classmate has chosen. Identify key anatomical features of your selected organ system, list them, and describe each briefly.
Identify key physiological functions of the organ system and its key histology features (i.e., the cell and tissue types found in this organ system) that enable its physiological functions. List these features with a brief descriiption of each physiological function and cell/tissue type.
List 2 interesting facts and 2 health issues related to this organ system. Include a brief descriiption of each one.
List your research sources for the initial post such as valid websites (CDC, etc.), and links to the scientific articles, but NOT Wikipedia.

1. The abstract section includes general background information about photosynth

1. The abstract section includes general background information about photosynthesis and the parameters of the spinach leaf lab experiment. For full credit, this section contains 3-5 sentences. These sentences should be grammatically correct, and contain appropriate scientific vocabulary.
2.Hypothesis: You will state the hypothesis this will be one clear sentence with appropriate scientific vocabulary regarding the leaf discs in light/dark and whether they float or do not float.
3.This section is a list of the items used to complete the lab. It can be in bullet or paragraph form.
4.This section should be a paragraph describing the data table and graph in the results section. In this section state whether the hypothesis was supported or was not supported. For full credit, this section should contain 3-5 sentences clear sentences. These sentences should be grammatically correct, and contain appropriate scientific vocabulary. Any explanation of possible source of error would be found here.
5. Three APA citations are required for full credit. The method for finding citations has been referenced several times in this course, due to its significance. More details, including the link, can be found under Start Here! There will not be a specific reference to this learning lab, so you will want to search for a related topic. This will allow you to see what types of research are currently being done in this field. You might try searching for photosynthetic activity in chloroplasts, the significance of chlorophyll, or carbon availability.

Experimental Design Plan
For your course project you are tasked with designing a

Experimental Design Plan
For your course project you are tasked with designing and carrying out a research project on plant transpiration of your own design using the Vernier instruments (see attached Transpiration Lab Student Guide for directions).
Transpiration is the process by which moisture moves through a plant. The process is broken down and explained in chapter 30, section 30.5 of the text book. The purpose of this assignment is to help you plan and design an experiment investigating the factors that impact plant transpiration.
Today’s experiment is all about planning. You will not actually conduct the experiment until during (or before if you choose) Week 14. However, after this week’s assignment is complete, you will be well organized and prepared to conduct your experiment, collect data, and conduct the experiment analysis.
During week 14 you will submit an experiment report using information from your design plan as well as your experiment results.
Please note that experiments that do not use the Vernier sensors will receive a grade of 0 so make sure you have your sensors ordered and available by week 14 when you must turn in your experiment report. See Content > Course Materials for ordering information.
LAB SAFETY NOTES:
You will be using a sharp object to cut the stem of your plant. Please take appropriate care and caution.
Do not cut any plant stems you cannot identify to avoid allergic reactions.
The Experimental Design Plan assignment is Due Week 6.
Submit the attached experiment design sheet with answers as an attachment.
*Note: additional instructions for determining leaf surface area by hand have been added to the documents for this week’s assignment.
Instructions:
Look through the directions in the transpiration lab student guides. Before performing an experiment or lab, you must design and plan what is going to be tested and how you are going to test it. You must be organized and be able to communicate your results effectively. This assignment is designed to help you organize your experiment design. Use what you have learned about the scientific method from your lab assignments to help you design an experiment on plant transpiration. You will need to conduct some background research on plant transpiration to help you design your experiment. The research will be used to help you write the introduction portion of your experiment paper.
An experiment is a research method in which you manipulate a variable or variables under very controlled conditions and examines whether any changes occur in response to the manipulation of the variable.
It is a cause and effect relationship
1. Experiment introduction & background research with references in APA format (50 pts)
Before you can design an experiment you need to have a good understanding of the current research. You need to summarize what research is currently known about your experiment question in the introduction of your report. This part of the assignment allows you to get a jump start on that task while building valuable knowledge that will help you in your experiment design.
1) Visit the APUS library and internet to research information on plant transpiration. The program guide for natural sciences is a good starting place to begin your APUS library research: Natural Science
2) Look through these tips for how to share background research in an introduction: Tips for Introduction section
Collect background information for your research experiment and use references and in-text citations to back up you research. (In science writing, almost every sentence is cited. Make sure you cite your sources!!)
Explain any ideas or techniques that are necessary for someone to understand your experiment. At the minimum you should cover what transpiration is, what role/influence your independent variable has on enzymes, why this is important, your testable question and hypothesis. The introduction is generally 1 page long. You need to use APA formatted in-text citations and references and this should be written in the 3rd person. You need to use at least 4 different academic references for your background research.
The grading in this section of the assignment is broken down as follows:
Coverage of topic including scientific question and hypothesis: 30 points
4 academic references and APA reference and citation technique: 15 points
Grammar/spelling/voice:5 points
Need tips on APA in text citations? They can be found here: In Text Citation
Need tips on APA reference formatting? They can be found here: Reference List
Want a handy tool that formats your references in APA for you? Visit this website: KnightCite
2. Identify the Independent Variable, Dependent Variable and Constants (10pts)
Independent Variable is the variable that is manipulated. It is the variable that you change on purpose. (The CAUSE) There are many variables that can change transpiration. You will choose only 1 independent variable to test. You can choose from temperature, light, humidity, plant species, or air flow.
Dependent Variable is the variable that we measure in response to the manipulation of the independent variable. It is a measurable change. State what are we measuring to gauge transpiration in our experiment here(The EFFECT)
Constants are all the other variables in the experiment that must remain the same so we can see what effect the independent variable has on the dependent variable.
The Control is used as a standard of comparison. The control is a level of the independent variable that has been changed the least or not at all.
3. Write a Title (5pts)
Use the following pattern when writing a title…
The Effect of the (Independent Variable) on the (Dependent Variable)
4. Write a Testable Question (5pts)
Not all questions are testable!!
A testable question asks. . .
“What is the effect of the Independent Variable on the Dependent Variable?”
5. Write a Hypothesis (5pts)
A hypothesis is a prediction of the outcome of the lab. Your prediction is based on your understanding of the scientific concept.
It answers your testable question. Use the following pattern:
IF the (IV- how it is changing), then the DV- how you think it will change), BECAUSE (why do you think this is happening.
Example- If the IV increases, then the DV will decrease because….
6. Write your Methods (20pts)
Procedures are a list of materials used in the experiment and the steps in performing the experimental part. Procedures are the recipe you follow in order to perform the experiment. Write these in order, in paragraph form, and using your own words. Do not simply copy and paste from the student lab guide. Avoid first person language!
7. Create your Data Table (5pts)
Data is recorded during the procedures. You need to create your data collection table for your experiment. Below is an example Data collection table. Create your own collection table using labels with the names of your variables and the correct units you are measuring. Do not collect data yet! You are just setting up the table so you are ready to collect data when it is time to run your experiment. Wait until you get feedback from this assignment to begin any data collection
{Insert name of Independent Variable} (insert units)
{Insert name of Dependent Variable} (insert units)
Average { Insert name of Dependent Variable }(insert units)
Trial 1 *
Trial 2 *
Trial 3*
Control
{Insert Treatment 1 Name}
{Insert Treatment 2 Name}
{Insert Treatment 3 Name}
*Repeated Trials——Why repeat the experiment more than once?
Mistakes happen no matter how careful you are so if you repeat the experiment you will get more reliable data. The more repeated trials the more likely you will reduce the effect of chance errors and the more reliable your data becomes and the more confidence you can place in your data. Generally a minimum of 3 trials is acceptable for experiments with more being better.
Here are some helpful videos that walk you through the setup steps involved in conducting the experiment:
AP Biology Investigation
Vernier Video (uses old gas pressure sensor)
Read through the attached documents to understand how you will customize the experiment and make it your own.

Worksheet #4
Community Ecology
Community Structure
Define community:
Define ecol

Worksheet #4
Community Ecology
Community Structure
Define community:
Define ecological niche:
Interactions between populations in a single environment
What are some interspecific interactions between individuals of different species? How will
these interactions influence the community in general? Be sure to include at least three
interactions.
Describe the different the trophic levels:
Producer
Primary consumer
Secondary consumer
Tertiary consumer
Quaternary consumer
What are the other trophic levels that depend on detritus?
How species affect their environments
What two components will define a community’s species diversity?
Define Keystone species:
How do disturbances affect a community? Are disturbances always bad?
What happens if you introduce a species to an environment that has no natural predators? How
will this introduction affect the community and species richness?
Compare the energy cycle of a vegetation to that of a meat eater. Which type of diet is better for
the environment?
The ecosystem
Outline the following chemical cycles and how each affects their environment. Include the
organisms that are involved in each.
Carbon cycle
Phosphorus cycle
Nitrogen cycle
Give some examples of how we can be more sustainable regarding the environment. Apply
what you know about populations, communities, and ecosystems to form your answer.