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DATE: NAME: CHAPTER 1 HANDOUT Biomagnification Activity: CLASS: BLM 1.2.17 DDT in the Ecosystem Use the following information to answer the questions below. DDT (dichlorodiphenyltrichloroethane) is.

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How to fill out the Biomagnification Activity Ddt In The Ecosystem online

Filling out the Biomagnification Activity Ddt In The Ecosystem form is an essential task for understanding the impact of DDT in our ecosystems. This guide will provide you with clear, straightforward instructions to complete the form effectively.

Follow the steps to successfully complete the form online.

  1. Click the ‘Get Form’ button to access the form and open it in your preferred online document editor.
  2. Begin by filling in the 'DATE' and 'NAME' fields at the top of the form. Ensure your entries are accurate and clearly legible.
  3. In 'CHAPTER 1 HANDOUT', locate the section labeled 'Biomagnification Activity'. Read the provided information carefully to understand the context.
  4. Proceed to question 1, where you will explain the term 'biomagnification' and calculate the DDT concentration at the highest trophic level. Take your time to think through the concept and provide a comprehensive response.
  5. For question 2, tackle parts (a) and (b) by calculating DDT intake based on the amounts of squid and fish consumed. Use any necessary formulas to ensure accuracy.
  6. In part (c) of question 2, compare the health implications of consuming fish versus squid, referencing the food web to support your answer.
  7. Question 3 will require you to analyze data from the seabird egg levels of DDT found in the subsequent table. Take note of the differences and calculate as instructed.
  8. Fill out parts (a), (b), and (c) of question 3, ensuring that graphs and trends are clearly articulated with supporting arguments.
  9. In question 4, outline the reasons behind the high levels of pollutants in specific populations and provide insight into why DDT remains a concern today.
  10. Once all questions are answered, review your responses for completeness and accuracy. You may then save your changes, download, print, or share the form as necessary.

Complete your forms online to contribute to understanding the effects of DDT on ecosystems.

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When an animal consumes food having DDT residue, the DDT accumulates in the tissue of the animal by a process called bioaccumulation. The higher an animal is on the food chain (e.g. tertiary consumer such as seals), the greater the concentration of DDT in their body as a result of a process called biomagnification.

Persistent pesticides such as DDT pass into food chain and increase the amount per unit weight of organisms due to their accumulation of fat. This phenomenon is called. No worries!

In an aquatic ecosystem, the concentration of DDT increases at successive trophic levels. It is present in a low amount in water and reaches a high concentration in fish-eating birds through biomagnification.

DDT affects the food chain by bioaccumulating in organisms, as well as reducing population sizes that can feed higher trophic levels. A rough example of the food chain would have fish eating insects that have been poisoned with DDT.

When an animal consumes food having DDT residue, the DDT accumulates in the tissue of the animal by a process called bioaccumulation. The higher an animal is on the food chain (e.g. tertiary consumer such as seals), the greater the concentration of DDT in their body as a result of a process called biomagnification.

Biological magnification often refers to the process whereby certain substances such as pesticides or heavy metals work their way into lakes, rivers and the ocean, and then move up the food chain in progressively greater concentrations as they are incorporated into the diet of aquatic organisms such as zooplankton, ...

The figure shows how DDT becomes concentrated in the tissues of organisms representing four successive trophic levels in a food chain. The concentration effect occurs because DDT is metabolized and excreted much more slowly than the nutrients that are passed from one trophic level to the next.

Hence, the correct answer is 'Water-0.003ppm, zooplankton- 0.04ppm, small fish-0.5ppm, large fish-2ppm, fish eating birds-25ppm'

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