Necrotizing fasciitis is a serious bacterial infection. necrosis is death of tissues in the body. considering the organization of the connective tissue sheaths of skeletal muscle, explain how this infection could spread rapidly throughout the body.

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

Which of the following are causes of coastal erosion? check all that apply. beach grasses and other plants trap windblown sand. wave action carves away the coastline. groundwater under pressure is forced to earth’s surface. artificial structures stop the natural flow of sand along the coast. underground caves collapse as bedrock is dissolved.

Drag the tiles to the correct boxes to complete the pairs. match the nitrogenous base of dna with its complement.