This process challenges one of the most widely held beliefs about the dynamics of salt-marsh ecosystems: supposedly, consumers such as geese do not play a large role in controlling the productivity of marsh systems. Rather, the standard view claims, marshes are controlled by bottom-up factors, such as nutrients and physical factors.
According to the passage, which of the following is a widely held belief about geese?
A. They are not often seen grazing in coastal salt marshes.
False. they graze a lot regardless the theory old or new. This is a fact
B. They are not the primary consumers in salt-marsh ecosystems.
False. They are consumers. They start the chain of events the passage describes
C. They play only a minor role in the productivity of salt-marsh ecosystems.
False
Quote:
supposedly, consumers such as geese do not play a large role in controlling the productivity of marsh systems.
But the new theory say the contrary, which means they PLAY a huge role. They DO NOT play a huge role according to the old theory. And the question is : according to the old theory that say they DO NOT play a huge role
D. They are the primary determinants of which resources will thrive in coastal salt marshes.
False they start the process to consume the grass. They do not determine anything
E. They control the productivity of salt-marsh ecosystems through a bottom-up process.
False . the old theory says that the marshes as a whole are controlled by bottom-up factors NOT the geese control such factors per see
Hope this help