Which term best describes the collection of technological systems made by engineers, technologists, and scientists that meet people’s needs and improve their quality of life? 1.the natural world

2.the designed world

3.the life science world

4.the materials science world

the answer is: trichonympha lives in the gut of termites and digests cellulose eaten by the termite.

this is an example of a symbiotic association of a protozoan with its mode of association.

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-lavira: )

the areas around the equator

answer; the tunica intima also called tunica interna, consists of elastic fibers,connective tissue and smooth muscle cells;