Concept explainers
To explain:
The reason why the changing conditions challenge the survival of the organisms living in the estuaries experiencing both freshwater and saltwater conditions each day with the rising and falling of tides.
Concept introduction:
The species of plants, fishes and animals living in the saline conditions near the estuary adapt to the changing conditions of the climate. The plants have aerated roots for removing the salts and for the intake of gas for the
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Chapter 40 Solutions
ETEXT CAMPBELL BIOLOGY IN FOCUS INSTANT
- MAKE CONNECTIONS What do climate change (seeConcept 1.1 and Concept 3.2) and ocean acidificationhave in common?arrow_forwardA) Briefly describe any two (2) examples of how the environment/habitat can limit the movements of nektonic organisms, and please include the site where you found this information B) List 5 adaptations that nektonic organisms have to move independently of currents (note: you don't have to explain these, just list them)arrow_forwardGasping for Oxygen Explain how each of the following contribute to dissolved oxygen decline in aquatic ecosystems: Rising water temperatures slowing streams organic pollutants/eutrophicationarrow_forward
- - U3:L1:E1:Flow of Energy and Matter rmat Tools Add-ons Help Last edit was 34 minutes ago Food Webs How would the oceanic food web be affected if all of the krill were removed from the ecosystem? (multi-sentence answer required) How would the oceanic food web be affected if all of the plankton were removed from the ecosystem? (multi-sentence answer required)arrow_forwardsome of the Adélie colonies in this area. Which statement is supported by both the text and the excerpt above? All three penguin species, Chinstrap, Adelie, and Gentoo, live only on sea ice. The food supply for Adelie penguins includes both fish and krill in the Antarctic seas. Adelie penguins are dependent on the existence of sea ice for access to their food supply. Temperatures in the Antarctic have increased substantially in the last 60 years.arrow_forwardCASE STUDY CONNECTION Describe five ecological changes to freshwater communities in the Great Lakes or the Hudson River that have occurred since the invasion of the zebra mussel. Describe one economic impact of the invasion. What is one way to prevent the mussel from spreading to new areas?arrow_forward
- What causes red tide? How does red tide impact you? Red tides occur every year, but some years are worse than others. What factors do you think would contribute to a particularly bad year for red tide?arrow_forwardHello! I have an assignment this week but I don't understand how to create a controlled experiment and can't come up with any ideas yet. The question is the following: What do climate change and ocean acidification have in common? Design a controlled experiment to test the hypothesis that water acidification caused by acid rain would inhibit the growth of Acropora, a reef-building coral. Thanks in advance!arrow_forward• Describe possible causes of mass fish mortality. • Explain the process of Eutrophication, its causes and consequences.arrow_forward
- The figure above shows main abiotic and biotic factors influencing the physiology and behavior of fish larvae in estuaries. The more important the factors are for the larvae, the thicker the lines. Suppose changes from question 1 take place. Draw a new figure and redefine the thickness of the lines and new factor interactions. This is from question 1 : A proposal is made to deepen the entrance and main channel of an estuary. What do you suppose will happen to the salt marshes that surround the channel? What do you predict will happen to the productivity of the estuary? Deeper channels would probably change the mixing of the fresh and saltwater and lead to increased salinity and changes in the salt wedges in the channel. This would probably negatively impact the plants on the edges of the channel, as they would have to deal with higher salt levels than they are adapted to. The strain that would be put on the plants (like cordgrasses) in the marshes, would most likely lead to a…arrow_forwardActivity 3: DIFFERENCES IN SPECIESResearch 5 similar species with different characteristics.Example: Gartner snakes live One lives in waterin the same regionOne lives in landarrow_forwardOBSERVATIONS • Sea otters feed significantly on sea urchins, often keeping urchin abundance 'in check'. • Sea urchins feed heavily on kelp, decimating kelp forests when urchin abundance is high. • Kelp forests protect the shoreline from coastal erosion by buffering wave action. • Orcas have been observed feeding on sea otters in the kelp forests of western Alaska. Table 1. Hypothesizing the relationship(s) between orcas, otters, urchins, kelp, and erosion. ↑ = increasing; V = decreasing %D When the abundance of: or v abundance/incidence of: select ↑ or V sea otters 个 sea urchins decreases sea otters sea urchins Choose One: sea urchins kelp Choose One: sea urchins kelp Choose One: orcas sea otters Choose One: orcas sea otters Choose One: kelp coastal erosion Choose One: kelp coastal erosion Choose One: sea urchins coastal erosion Choose One: sea urchins coastal erosion Choose One: sea otters coastal erosion Choose One: sea otters coastal erosion Choose One: orcas sea urchins Choose One:…arrow_forward
- Biology 2eBiologyISBN:9781947172517Author:Matthew Douglas, Jung Choi, Mary Ann ClarkPublisher:OpenStaxBiology: The Dynamic Science (MindTap Course List)BiologyISBN:9781305389892Author:Peter J. Russell, Paul E. Hertz, Beverly McMillanPublisher:Cengage LearningBiology: The Unity and Diversity of Life (MindTap...BiologyISBN:9781305073951Author:Cecie Starr, Ralph Taggart, Christine Evers, Lisa StarrPublisher:Cengage Learning
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