Answered: 3. How does the depth of water affect…

3. How does the depth of water affect light availability? How deep does light penetrate ocean water? How might this affect ocean life?

Biology (MindTap Course List)

11th Edition

ISBN:9781337392938

Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg

Publisher:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg

Chapter30: An Introduction To Animal Diversity

Section30.2: Adaptations To Ocean, Freshwater, And Terrestrial Habitats

Problem 2LO: Compare the advantages and disadvantages of life in the ocean, in fresh water, and on land.

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1.List three “special” characteristics of water that influence living organisms. Then for one of these characteristics explain how it influences aquatic life on earth 2.In hydrological terms what are recharge and residence time? b) What happens if pumping rate from aquifers exceeds recharge rate 3.The attenuation of light in water is dependent on the extinction coefficient (eλ) summed for all wavelengths.What factors contribute to or determine this extinction coefficient?
2. How will global warming affect the proportions of the Earth’s water that resides in the oceans?
1 Some animals seem to be more similar to plants than animals. This is especially true for the sessile ones—those that just sit in one place for the majority of their lives. For example, the giant clam Tridacna sits in one place all the time sunning itself and essentially farming photosynthetic algal symbionts from which it draws its nutrients. Sea anemones and corals just sit in the same place their whole lives catching organic material that falls from above. How is that any different from a pitcher plant? Answer the following questions to reach a conclusion: a. Why do we still refer to a giant clam as a metazoan?
1 Some animals seem to be more similar to plants than animals. This is especially true for the sessile ones—those that just sit in one place for the majority of their lives. For example, the giant clam Tridacna sits in one place all the time sunning itself and essentially farming photosynthetic algal symbionts from which it draws its nutrients. Sea anemones and corals just sit in the same place their whole lives catching organic material that falls from above. How is that any different from a pitcher plant? Answer the following questions to reach a conclusion: b. How is a pitcher plant similar to a sea anemone?
An organism characterized as a photoautotroph obtains energy from _____ and carbon from _______. (a) light; organic molecules (b) light; CO2 (c) organic molecules; organic molecules (d) organic molecules; CO2 (e) O2; CO2
8. Which best explains why exploration of the deep ocean floor is limited? A The salinity in the deep ocean is too low for human life. B. The pressure on the deep ocean floor is too high for human life. C. The levels of oxygen in the deep ocean are too high for human life. D. The temperature on the deep ocean floor is too high for human life.
iii. How large do ‘dark refuges’, where the intensity and/or duration of artificial light falls below such thresholds, need to be to maintain natural ecosystem processes?iv. What/How is the status of light pollution worldwide during pandemic (Covid-19)?
2. Scientists study bubbles trapped in ancient glacial ice to determine how concentrations of nitrogen and carbon dioxide gas have changed over time. However, bubbles in glacial ice cannot provide information about changes in phosphorus. Explain why air samples are not useful for this purpose, and propose an alternative method to study how the amount of phosphorus in a region has changed over time.
Almost no sunlight penetrates the deep ocean. However, many fish that live there attract prey and potential mates by producing their own light. Where does that light come from? Does its generation require energy?
7. The highest concentrations of life exist in the top 200 meters of ocean water. As you dive deeper into the ocean, the environmen nditions change and biodiversity decreases. Which of the following statements is true in relation to environmental changes in a body of water? S A. As depth increases, both temperature and light increase. B. As depth increases, both temperature and light decrease. C. As latitude decreases, both temperature and depth are increasing. D. As latitude decreases, both temperature and depth are decreasing.
12. Compare and contrast the chemistry of flowing-water ecosystems to standing-water ecosystems. 13. If the concentration of dissolved oxygen decreased in a lake what might happen to the entire aquatic ecosystem? Be specific!
SCIENCE, TECHNOLOGY, AND SOCIETY international monitoring projects are gathering data to help us understand coral reef destruction. In your opinion, why is it important to take action to protect coral reefs? What role might technology play?