26. The relationship between population growth and resources can be described as
a. inverse; as one goes up the other goes down
b. parallel; when one goes up so does the other
c. complex; there are many contributing factors
d. equal; they both level off in any population
...Not sure
27. Food webs are more commonplace than food chains because
a. many animals that comprise the links in a food chain are migratory
b. organisms almost always eat, and are eaten by, many different organisms.
c. over time, food chains always become food webs
d. all of the above
B?
Thanks
-MC
Check these sites.
http://www.rand.org/pubs/research_briefs/RB5045/index1.html
http://www.vtaide.com/png/foodchains.htm
Go Browns
26. To determine the relationship between population growth and resources, we need to analyze the given options:
a. Inverse; as one goes up the other goes down: This option suggests that as population growth increases, resources decrease.
b. Parallel; when one goes up so does the other: This option suggests that population growth and resources increase together.
c. Complex; there are many contributing factors: This option suggests that the relationship between population growth and resources involves multiple factors.
d. Equal; they both level off in any population: This option proposes that population growth and resources stabilize at a certain level.
To determine the correct answer, we need to understand the general relationship between population growth and resources. As populations grow, they require more resources to sustain themselves. However, the availability of resources may become limited, leading to competition among individuals for those resources. This competition can lead to a decrease in the availability of resources.
Therefore, the correct answer is option a. The relationship between population growth and resources is generally inverse; as population growth increases, the availability of resources may decrease.
27. To determine why food webs are more commonplace than food chains, let's evaluate the given options:
a. Many animals that comprise the links in a food chain are migratory: This option suggests that due to migration patterns of animals, food chains are less common.
b. Organisms almost always eat, and are eaten by, many different organisms: This option proposes that organisms have multiple interactions within an ecosystem, leading to the presence of food webs.
c. Over time, food chains always become food webs: This option implies that food chains evolve into food webs over time.
d. All of the above: This option suggests that all the mentioned reasons contribute to food webs being more common than food chains.
The correct answer is option b. Organisms almost always eat, and are eaten by, many different organisms. Food webs are more common because organisms have complex interactions and are part of multiple food chains, which combine to form a food web. This interconnectedness in ecosystems is why food webs are more prevalent than isolated food chains.
I hope this helps clarify your understanding! Let me know if you have any more questions.