Ecosystems science discussion help

Reply to this post in 150 words or more.

I do believe that we as humans should be concerned with the extinction rate.

We all learned about ecosystems in elementary school, and we can all probably agree upon the importance about them.  With the rapid expansion of housing units and the ever growing city sizes and human population growing, we aren’t just knocking out 1 or 2 species here and there.  There are some countries where entire ecosystems are being destroyed.  This is due to emissions, trash and waste pollutions, the destruction of forests and rivers.  When these things happen, and an entire ecosystem goes down… that has a permanent effect on not just one or two species of animals… but sometimes tens to hundreds.  Not to mention plant species and trees.  When the homes of animals are destroyed, that affects more than just that one species.  But further up the food chain as well, and the other animals that rely on that animal as either a food source or other means. 

Our reading tells us about the Aral Sea in central Asia.  In the 50s, water was diverted from it to use for feeding crops all over Uzbekistan and Kazakhstan.  Over the years, it went from being one of the largest lakes on Earth, to virtually nothing now. Because of human interaction, we killed off 100s of species of fish that lived there. 

We should defiantly strive to protect biomes.  This needs to be accomplished by opening up protected areas of the environment, like National Parks.

 

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does using social networking sites such as facebook cause mental health disorders

Subject: abormonal psychology
Topic: Does using social networking sites (such as Facebook) cause mental health disorders?
Reference APA
1500 words as I have started 300 words which I will send after confirm writer.
Please follow the sample attached. It is a literature review.
These are tables (example in the screenshot) which should be included after the results page. Thanks
 
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A toy car has a scale factor of 1/40. The diameter of the toy car’s tire is 5/8 inches. What is the diameter of the actual car’s tire? – custom papers

A toy car has a scale factor of 1/40. The diameter of the toy car’s tire is 5/8 inches. What is the diameter of the actual car’s tire?
A toy car has a scale factor of 1/40. The diameter of the toy car’s tire is 5/8 inches. What is the diameter of the actual car’s tire?

 

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week 3 individual assignment QNT561

Sampling Design

Using the scenario and two variables your learning team developed for the Week 2 Business Research Project Part 1 assignment, create a paper of no more than 700 words in which the goal is to submit a random sampling plan in such detail that another researcher could replicate the method.

Discuss the following:

(a) Population and size

(b) The target population and brief reasoning

(c) Sampling element which may be conducted through any of the following:

  • Data mining
  • Survey (If a survey is chosen, create a 5-10 question document), or
  • Observation

(d) The sample size

(e) Method of random sampling which may include:

  • Simple
  • Stratified
  • Systematic, or
  • Cluster

Calculate the sample size using a 95% confidence level, and a 5% margin of error. Place the calculation in the Appendix.

Discuss how validity (and reliability) will be achieved.

Explain how human subjects will be protected (if applicable).

Data collection

Explain how the data will be physically collected.

Explain where data will be stored and how it will be protected.

Format your paper consistent with APA guidelines.

*******attached is Week 2 Business Research Project Part 1 assignment***********

 

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