What is the basic unit of life?

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

The deserts of the sahara and australia are associated with

Which best compares habitat and niche? o niche is a place in which organisms live, and habitat is the way in which an organism fits into its habitat. o habitat is a place in which organisms live, and niche is the way in which an organism fits into its habitat. habitat is a group of organisms that live in an area, and niche is a specific species that lives in that areao niche is a group of organisms that live in an area, and habitat is a specific species that lives in that area.