Hit the sock what is it correct meaning?​

How many trophic levels are there in the following food chain? phytoplankton - shrimp - perch - pike - osprey

Organisms are classified, or grouped into categories, based on similarities in their characteristics and/or evolutionary relationships. the study of how organisms are classified is known as

Which is not a likely outcome after extensive irrigation of dry farmland? useless, unproductive soil salinization of the soil depletion of groundwater nutrient-rich soil