The plants along a river ecosystem are partially made up of other organisms. True or False??

She planned to observe the flowers for the next five days for an hour at the same time each afternoon. then she wou the data in a multiple line graph to compare the number of bees that visited each flower. which statement best descr data in this investigation?

For a comparative or experimental investigation, scientists often make a testable about a scientific question, and then they test it in the investigation. a. control b. hypothesis c. procedure d. system

Explain how paleontologists use trilobite fossils as index fossils for various geologic time periods.