What causes competition in an ecosystem?
A. Ecosystems have unlimited resources
B. There is enough shelter for all the organisms
C. Organisms all want the same resources
D. Food supplies are very large in the ecosystem

C organisms all want the same resources

Explanation:

C, because if all organisms want the same resources, then there will be competition to obtain them to survive.

the "dirty dozen" chemicals banned in an international treaty are formally known as persistent organic pollutants, or pops. the united nations environment program provided this background on what they are and what they can do to humans and wildlife.

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golgi body just took the test on edge