Human Biology: Concepts and Current Issues
7th Edition
ISBN: 9780321821652
Author: Michael D. Johnson
Publisher: Benjamin Cummings
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Chapter 23, Problem 5AWK
Summary Introduction
To review:
The introduction of the zebra mussel into the great lakes that has a significant impact on the lake ecosystem.
Introduction:
There are some invasive species in our environment, which are introduced into the ecosystem that might overtake or dominate the native species. One such example is the zebra mussel, which was introduced in the Great Lakes by oceangoing vessels.
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Chapter 23 Solutions
Human Biology: Concepts and Current Issues
Ch. 23 - Prob. 1QCCh. 23 - Prob. 2QCCh. 23 - What are the components of an ecosystem?Ch. 23 - Prob. 2CRCh. 23 - Describe what happens to a country as it undergoes...Ch. 23 - Define zero population growth and explain why it...Ch. 23 - Prob. 5CRCh. 23 - Prob. 6CRCh. 23 - Prob. 7CRCh. 23 - Explain why the water cycle is essential to all...
Ch. 23 - Discuss the importance of the carbon cycle.Ch. 23 - Discuss the phosphorus cycle and its importance.Ch. 23 -
1. Your college campus, including all the humans...Ch. 23 -
2. Which of the following will affect the biotic...Ch. 23 - A population is growing at a rate of 2% per year....Ch. 23 - Which of the following statements is false? a. The...Ch. 23 - The large intestine of humans is populated by a...Ch. 23 -
5. Which of the following characterizes mature...Ch. 23 - Which statement about the human fertility rate is...Ch. 23 -
6. _____ flow(s) one-way through ecosystems while...Ch. 23 - All of the following terms can appropriately...Ch. 23 -
8. A human maintaining a vegan diet (containing...Ch. 23 - All of the following processes are involved in the...Ch. 23 - Prob. 12TYCh. 23 - Prob. 13TYCh. 23 -
12. Which biogeochemical cycle does not include...Ch. 23 - Prob. 15TYCh. 23 - Given absolutely no environmental resistance, how...Ch. 23 - Prob. 2AWKCh. 23 - Prob. 4AWKCh. 23 - Prob. 5AWKCh. 23 - Prob. 6AWKCh. 23 - Prob. 7AWKCh. 23 - Least developed countries tend to be poorer than...
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- What is the problem of zebra mussels and invasive species in North America?arrow_forwardOn the island of Mauritius and in the Azores, the habitat is very suitable to what animals, even though they never occurred there naturally until accidentally introduced?arrow_forwardWhy is shark finning used in shark fin soup can lead to the destruction of the coral reef system?arrow_forward
- Explain how humans caused the lion fish invasion.arrow_forwardA species of barnacle may be able to exploit a large volume of habitat but due to competition from other species this barnacle is confined to a smaller area within the larger volume. This area where the barnacle is acutally found is its __________. A) working space B) crevice C) fundamental niche D) realized niche E) potential nichearrow_forwardWhat are the potential ecological consequences of introducing a non-native aquatic species into an established freshwater ecosystem?arrow_forward
- Suchanek tracked the rate of growth of mussels when the two species had initially colonized a bare patch on the rocks (Figure 21.22). What can be concluded regarding the growth of these two species? 100 90- 80- California mussel 70- 60 blue mussel 50- 40- 30- 20- 10- 4. 12 18 20 24 28 32 36 40 Nov. 1975 patch age (months) Figure 21.22 Growth rates of two mussels in a bare rock patch in the low intertidal zone. Data points represent shell lengths of the ten largest individuals found in the patch on each sampling date. Dashed lines to the x- axis indicate estimated times of settlement and initial growth in the patch. Arrows on the growth curves indicate the smallest size at which each species may reach sexual maturity. The blue mussel appears to reach a maximum shell length, suggesting that they were outcompeted by California mussels. The California mussel colonizes the patch later but within a few months have grown to a larger size than blue mussels. The two species colonize the patch…arrow_forwardImagine that a certain foreign snake species has been set loose in Mississippi. They are flourishing in their new habitat, however, their effect on native ecosystems has been destructive. Explain the reasons behind this problem. How likely is this example?arrow_forwardPlasmodium is a vector for mosquitos. It is a protozoan that is the causal agent of malaria, which is responsible for killing as many 855,000 people in 2013, the majority of them being children. Populations of mosquitos are strongly influenced by the availability of standing water for egg-laying and larval development. How might mosquito density, and thereby human mortality, be affected by patterns of rainfall?arrow_forward
- What is the problem of zebra mussels, and invasive species (see Case Study 11.1 in Natural Resource Conservation)?arrow_forward4. Why is Pacific salmon movement into freshwater streams considered migration if the salmon die at the head of the stream and never return to the ocean? A) It is not considered migration but immigration. B) Migration is a one-way movement. C) Because their offspring return to the ocean, the entire population participates in the migratory event via different life stages. D) Most male adult fish survive reproduction and return to the ocean. 5. The distribution of species is rarely determined by minimum and maximum temperature tolerances. TRUE or FALSE.arrow_forwardA ghost shrimp is the dominant estuarine macroinvertebrate in the sediment along Amero-trailing coast. Describe the likely processes or activities of the ghost shrimp and how they help to maintain the health of the ecosystem.arrow_forward
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