What is it called when injured blood vessels contract to reduce or stop the flow of blood?

Environmental differences within ecosystems are generally caused by

Talking listening and reacting non verbally are all part of communicating

Asap brainliest will be which sentence about protists is accurate? all protists are unicellular and microscopic in nature. they have organelles, so protists are eukaryotic in nature. all protists make their own energy through photosynthesis.