Answer:
Multiple relationships are present.
Explanation:
There are multiple relationships present in every ecosystem such as predation, commensalism, parasitism, and mutualism because every organism depends on other organism for survival. Some organisms feeds on another organisms by killing it, this type of relationship is known as predation . In commensalism, one organism gets benefit while the other get neither benefit nor harm. In parasitism, one organisms get benefits while the other get harm whereas in mutualism, both the organism gets benefits.
To be frank, I don't think your question is specific enough, but I would say that the answer would be the Rocky mountains, or just mountains. those are the only major kinds of landforms I can think of
<span>The O.E.D. Was printed after 2 years of research
True
False
</span>
the answer is False
Lead was not vital for economic success.
1. producing oxygen and nitrogen via photosynthesis.
2. having different ecosystems for living things to live in and survive