The tropical waters where coral reefs are found are usually poor in nutrients and therefore have very little phytoplankton or primary production. In these barren waters, coral reefs are oases of abundant life. How can such rich communities grow when the surrounding sea is so unproductive

in a word, a scientific question is testable. a testable question is one that asks about objects, organisms or events found in the world around it

the oceanic zone is typically defined as the area of the ocean lying beyond the continental shelf, but operationally is often referred to as beginning where the water depths drop to below 100 meters (328 feet), seaward from the coast to the open ocean.

explanation:

the dna molecules have a negative charge because of the phosphate groups in their sugar-phosphate backbone, so they start moving through the matrix of the gel towards the positive pole. power is turned on and dna fragments migrate through gel (towards the positive electrode).

explanation: