Which most closely defines niche? a. a role that a population has within its community b. a unique environment in which an organism lives c. a place that satisfies all of the needs of a population d. a part of an ecosystem where an organism can survive

Need will mark ! which features are created by groundwater erosion and deposition? check all that apply. a. stalagmitesb. sinkholesc. rillsd. stalactites e. gullies f. rivers

Development of new communities in disturbed environments, such as a burned or a clear cut forest, is called

Need an answer asap 45 points and brainlest to the first person to answer why do scientific theories, such as biological and chemical evolution, represent the strongest explanation of the changes observed in the fossil record. must be in sentence form how can scientific theories on evolution and the fossil record change over time? must be in sentence form