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

Which of the following is a good definition for the word adaptation? question 1 options: a trait that an organism survive and reproduce in its environment. a change in an organism's environment. the way in which animals obtain food. a temperature change that can cause the extinction of plants and animals.