Biology: Concepts and Investigations
5th Edition
ISBN: 9781260259049
Author: Hoefnagels
Publisher: MCG
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Chapter 39, Problem 8WIO
Summary Introduction
To determine:
How the use of herbicide and biological control (
Concept introduction:
The standing water contains the fresh water. The standing water is characterized by consisting the stagnant water (water which is not flowing). The example of standing water is lakes and ponds. The lake is divided into four zones photic zone, littoral zone, limnetic zone, profundal zone and benthic zone.
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which of the following statements about algal bloom and eutrophication is true?
1. Eutrophication is typically caused by the removal of nitrogen and/or phosphorus
2. algal blooms cannot produce toxic substances that threaten drinking water
3. when algae in an algal bloom die, decomposition produces excess oxygen, which can kill fish
4. algae populations grow when limiting nutrients become more available
Harmful algal blooms are occurring in an estuary near the town of Reedville . As a result , oxygen concentrations in the water of the estuary have decreased . This has killed fish and other aquatic life in the estuary . Concerned for the local food supply and habitats , residents of Reedville wish to take action .
Which action will most likely result in a reduction in algal blooms ?
F building smaller dams
G stopping fertilizer use on residential lawns H stopping recreational use of the estuary
J using less groundwater
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Chapter 39 Solutions
Biology: Concepts and Investigations
Ch. 39.1 - Prob. 1MCCh. 39.1 - What abiotic conditions influence the distribution...Ch. 39.2 - Prob. 1MCCh. 39.2 - Prob. 2MCCh. 39.2 - Prob. 3MCCh. 39.3 - How do climate and soil composition determine the...Ch. 39.3 - Infer one adaptation of plants and one adaptation...Ch. 39.3 - Prob. 3MCCh. 39.4 - Prob. 1MCCh. 39.4 - Prob. 2MC
Ch. 39.4 - Prob. 3MCCh. 39.5 - Prob. 1MCCh. 39.5 - Prob. 2MCCh. 39.5 - Prob. 3MCCh. 39.6 - Prob. 1MCCh. 39.6 - Prob. 2MCCh. 39 - Prob. 1MCQCh. 39 - Prob. 2MCQCh. 39 - Prob. 3MCQCh. 39 - AID: 1825 | 18/04/2018 5. Which of the following...Ch. 39 - A worm 1ha1 lives in lake sediment is in the...Ch. 39 - Prob. 6MCQCh. 39 - Prob. 1WIOCh. 39 - Explain why sunlight is most intense at the...Ch. 39 - Prob. 3WIOCh. 39 - Prob. 4WIOCh. 39 - Prob. 5WIOCh. 39 - Prob. 6WIOCh. 39 - Polar bears live on the ice cap near the North...Ch. 39 - Prob. 8WIOCh. 39 - Use the clues provided to determine which biome...Ch. 39 - Prob. 10WIOCh. 39 - Prob. 11WIOCh. 39 - Prob. 12WIOCh. 39 - Prob. 1PITCh. 39 - Prob. 2PITCh. 39 - What types of terrestrial biomes are likely to...
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- Examine the situation below. What function/services of the ecosystem is highly depicted in this situation? Justify. For 3-5 sentences only* One of the wetland ecosystem which is subjected to this degradation and considered as heavy polluted lake in the Philippines Laguna de Bay (LDB) (Framework for Philippine Plant Conservation Strategy and Action Plan retrieved 2018). LDB is the largest lake in the country and amongst the largest in Southeast Asia. It is a significant natural resource, being the catchment of an expansive and environmentally important watershed (Israel 2007). The shorelines of LDB serve as important locations for industrial, commercial and tourism activities in the country. It plays an ecological importance because it serves as spawning areas for fish and a natural protection from floodsarrow_forwardAt a global scale, harmful algal blooms (HABS) are appearing in many places, often new places, and lasting longer than previously recorded. Across Florida, the occurrence of algal blooms, caused by various species of phytoplankton, has been intensifying. In the summer of 2016, a state of emergency was declared because a toxic cyanobacterial bloom occurred in Lake Okeechobee which spread into and throughout the St. Lucie River and Estuary. Water samples collected during the bloom helped identify a limiting nutrient. 1. Data from a Burger et al. (2004) indicate that mercury levels in Florida gar, top-level predators, from Lake Okeechobee were not higher than mercury levels of fish muscle from other locations in the United States. However, mercury levels in the livers of Florida gar were above the level considered safe for human consumption. a. Explain why this is good news for people who fish in Lake Okeechobee. b. Explain why this is bad news for non-human consumers of fish, and how it…arrow_forwardou are on a field trip visiting a local pond. You have been tasked with identifying the different abiotic and biotic factors that affect the ecosystem. You notice a large dam blocking what used to be a stream. There are several aquatic plants and animals in the area. Fish reside in the pond, small reptiles like skinks and snakes live around fallen trees, finches and various other bird species can be found around the pond. You also find trash along the outskirts of the pond. Describe specifically how this keystone species would impact its ecosystem.arrow_forward
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