If i have a forest composed of 481 species of trees, each with a known abundances, how many events are there in the sample space describing the event of randomly selecting a single tree of a specific species?

Which prevent errors in dna replication? a. helicase enzyme checks the dna for errors. b. each base can attach to only one other type of base. c. ribosome enzymes prevent errors from happening. d. dna contains no complementary base pairs.

The negative impacts of nonnative species generally outweigh the positive impacts

Which set of terms best describes a community of miners who live out in the countryside of west virginia and use specialized geological equipment to analyze the composition of rock?