BIOLOGY:THE ESSENTIALS (LL) W/CONNECT
3rd Edition
ISBN: 9781260670929
Author: Hoefnagels
Publisher: MCG CUSTOM
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Chapter 19, Problem 4MCQ
Summary Introduction
Introduction:
A linear order of feeding habits of species is called a food chain. Each organism is placed at a particular position which is called the trophic level. However, in general, there are three types of organisms: producers, consumers, and decomposers.
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a This food web shows the flow of energy through a desert ecosystem
Which correctly describes a relationship shown on this food web ?
A. The coyote and the mountain lion have a predator /prey relationship
B. The coyote and the mountain lion have a producer /consumer relationship
C. The golden - mantled squirrel and the big sagebrush have a predator /prey relationship .
D. The golden -mantled squirrel and the big sagebrush have a producer /consumer relationship
Which factor most directly limits the variety of herbivores living in an area?
a) amount of nitrogen in the atmosphere
b) number of decomposers present
c) types of plants present
d) kinds of minerals in the water
A food chain would be a better resource than a food web to answer which question? a. How does energy move from an organism in one trophic level to an organism on the next trophic level? b. How does energy move within a trophic level? c. What preys on grasses? d. How is organic matter recycled in a forest?
Chapter 19 Solutions
BIOLOGY:THE ESSENTIALS (LL) W/CONNECT
Ch. 19.1 - Distinguish between ecosystems, communities, and...Ch. 19.1 - Prob. 2MCCh. 19.1 - What is the relationship between an organisms...Ch. 19.2 - Explain this statement: If Earths axis were not...Ch. 19.2 - Prob. 2MCCh. 19.3 - Prob. 1MCCh. 19.3 - Infer one adaptation of plants and one adaptation...Ch. 19.3 - Describe the types of organisms that live in each...Ch. 19.3 - Prob. 4MCCh. 19.3 - Describe some of the adaptations that characterize...
Ch. 19.4 - Prob. 1MCCh. 19.4 - Prob. 2MCCh. 19.4 - Prob. 3MCCh. 19.4 - Prob. 4MCCh. 19.4 - Prob. 5MCCh. 19.5 - Prob. 1MCCh. 19.5 - Prob. 2MCCh. 19.5 - Prob. 3MCCh. 19.5 - Prob. 4MCCh. 19.5 - How do disturbances prevent true climax...Ch. 19.6 - Prob. 1MCCh. 19.6 - Prob. 2MCCh. 19.6 - Prob. 3MCCh. 19.6 - Prob. 4MCCh. 19.6 - Prob. 5MCCh. 19.7 - Describe the main abiotic reservoirs for the...Ch. 19.7 - What unique roles do microbes play in the nitrogen...Ch. 19.7 - Prob. 3MCCh. 19 - Which of the following is an example of an...Ch. 19 - Why are the poles colder that equator? a. Because...Ch. 19 - A biome with high average temperature and moderate...Ch. 19 - Prob. 4MCQCh. 19 - Prob. 5MCQCh. 19 - Prob. 6MCQCh. 19 - Prob. 7MCQCh. 19 - Prob. 8MCQCh. 19 - Prob. 9MCQCh. 19 - Prob. 10MCQCh. 19 - How does a community differ from an ecosystem?Ch. 19 - Prob. 2WIOCh. 19 - Prob. 3WIOCh. 19 - Prob. 4WIOCh. 19 - Use the clues provided to determine which biome...Ch. 19 - Prob. 6WIOCh. 19 - Prob. 7WIOCh. 19 - Prob. 8WIOCh. 19 - Prob. 9WIOCh. 19 - Prob. 10WIOCh. 19 - Prob. 11WIOCh. 19 - Search the Internet to find a definition for...Ch. 19 - Prob. 1PITCh. 19 - Prob. 2PITCh. 19 - Prob. 3PIT
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- The producer in an ocean grazing food web is usually a _____. a. plant b. animal c. fungi d. planktonarrow_forwardA feeding relationship that proceeds from algae to a fish, then to a fisherman, and then to a shark is _____. a. a food chain b. a food web c. a and barrow_forwardA salmon has higher mercury levels than phytoplankton. This is due to______? A. Food-web magnification B. Bioaccumulation C. Biomagnification D. Persistent organic pollutionarrow_forward
- Explain why estuaries are especially nutrient-rich.arrow_forwardBased on results from studies at Hubbard Brook Experimental Forest, what would be the predicted effect of clearing trees from a watershed? a. Increased loss of water and nutrients from a watershed b. Decreased loss of water and nutrients from a watershed c. Increased availability of phosphorus d. Increased availability of nitratearrow_forwardThe primary producers in an ocean grazing food web are usually ________. a. plants b. animals c. fungi d. phytoplanktonarrow_forward
- Which aquatic area would be least impacted by human activity? Multiple Choice A) Salt marshes B) Open ocean C) Freshwater river D) Coastal watersarrow_forwardWhich term describes the process whereby toxic substances increase along trophic levels of an ecosystem? a. biomassification b. biomagnification c. bioentropy d. heterotrophyarrow_forwardDraw a food chain showing the relationships between these organisms, indicating the direction of the flow of energy. Which organism is at the top of this food chain? Calculate the standing crop biomass in each trophic level (C = A × B).arrow_forward
- One industry that is in need of sustainable practices is the fishing industry. Which of the following is a sustainable way to harvest from the ocean? a dredging b trawling c longlining d rotatingarrow_forwardApproximately how much rain forest is being lost per year? a. 70,000 hectares b. 700,000 hectares c. 7,000 hectares d. 7,000,000 hectaresarrow_forwardAt which point in the trophic pyramid is the greatest arount (not percentage) of energy lost? A) Between the primary producers and the primary consumers B) Between the primary consumers and the secondary consumers C)Between the secondary consumers and the tertiary consumers D) Between the secondary consumers and the primary producersarrow_forward
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