ETEXT CAMPBELL BIOLOGY IN FOCUS INSTANT
3rd Edition
ISBN: 9780135964422
Author: Urry
Publisher: PEARSON
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Chapter 43, Problem 4TYU
Summary Introduction
Introduction:
The increasing concentration of toxins or pollutants in the tissues of organisms at the higher levels in the food chain is termed as biological magnification. The accumulation of toxic chemicals can produce more risk to top-level predators than others in the food chain.
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The best long-term solution to the greenhouse gas problem is
a.Develop a machine which absorbs carbon dioxide and releases oxygen, similar to what plants do, but better.
b.Generating enough smoke in the atmosphere, so that less sunlight penetrates to the earth's surface.
c.Using powerful rockets, shift the earth in its orbit slightly, so that it is farther from the sun.
d.Using only clean sources of energy.
Which of the following statements BEST describes energy transfer in an ecosystem?
A.
If the primary producer has 175,000 kcal available, the secondary consumer will receive 17,500 kcal from the primary consumer.
B.
If the primary consumer has 175,000 kcal available, the secondary consumer will receive 17,500 kcal from the primary consumer.
C.
If the primary consumer has 175,000 kcal available, the tertiary consumer will receive 175 kcal from the secondary consumer.
D.
If the primary producer has 175,000 kcal available, the tertiary consumer will receive 17,500 kcal from the secondary consumer.
Answer the questions below based on the Active Reading above:
1. Organisms need
to live and
to survive.
2. What do limiting factors do?
a. Separate biotic factors from abiotic factors.
b. Determine which is the predator and which is the prey.
€. Regulate how many organisms live in an ecosystem.
d. Determine which natural disasters will hit an area.
3. Which of the following are abiotic limiting factors?
a. The decomposers in an ecosystem.
b. The populations of producers in a given habitat.
c. Carrying capacities of several species.
d. Water, space, and oxygen.
4. Which of the following is a biotic limiting factor?
a. The amount of breathable oxygen available to a population.
b. Food available for organisms
lw ast
C. The nitrogen to oxygen ratio in the air supply.
d. The number of bodies of water in a habitat.
5. In biology, what is carrying-capacity?
a. The maximum population size an ecosystem can support.
b. A total list of the limiting factors.
C. How much weight an organism can…
Chapter 43 Solutions
ETEXT CAMPBELL BIOLOGY IN FOCUS INSTANT
Ch. 43.1 - Prob. 1CCCh. 43.1 - Prob. 2CCCh. 43.1 - WHAT IF? Imagine two populations of a fish...Ch. 43.2 - How does the reduced genetic diversity of small...Ch. 43.2 - Prob. 2CCCh. 43.2 - WHAT IF? In 2005, at least ten grizzly bears in...Ch. 43.3 - Prob. 1CCCh. 43.3 - Prob. 2CCCh. 43.3 - Prob. 3CCCh. 43.4 - How can the addition of excess mineral nutrients...
Ch. 43.4 - MAKE CONNECTIONS There are vast stores of organic...Ch. 43.5 - Prob. 1CCCh. 43.5 - Prob. 2CCCh. 43.6 - Prob. 1CCCh. 43.6 - Prob. 2CCCh. 43.6 - WHAT IF? Suppose a new fishery is discovered, and...Ch. 43 - Prob. 1TYUCh. 43 - Prob. 2TYUCh. 43 - Prob. 3TYUCh. 43 - Prob. 4TYUCh. 43 - Prob. 5TYUCh. 43 - Prob. 6TYUCh. 43 - Prob. 8TYUCh. 43 - FOCUS ON EVOLUTION The fossil record indicates...Ch. 43 - Prob. 10TYUCh. 43 - SYNTHESIZE YOUR KNOWLEDGE Big cats, such as the...
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