Which of the following statements about coral reef preservation efforts is true? a. in order to preserve coral reefs, all aquarium trade in coral reef organisms must end. b. legislation has had no impact on coral reef preservation efforts. c. various preservation methods have had some positive impact on coral reef preservation. d. education of fishermen has eliminated all coral reef loss.

Ateam from new york presbyterian hospital is conducting a study about a recent increase in cases involving both excess sweating and kidney stones. what would the team need before it draws a conclusion about the cases? medications that are specifically designed to treat the sickness machines that are built to process blood and reduce symptoms until patients are healthy again data that profile the various patients who report these symptoms proof that the excess sweating is related to the excessive kidney stones

Ivan is looking at a cross section of a stem taken from a vascular plant. he sees two different types of vascular tissue: the xylem, which is closer to the center of the stem, and the phloem, located around the xylem, closer to the outside of the stem. how do these two structures work together in a living plant?

Blank is a rock with a find dark texture that makes up the oceanic crust