How can classification of a poisonous organism help save someones life?

air, water, heat and noise pollution can all be caused by producing and using technology. consuming resources - non-renewable resources, including precious metals like gold, are used to make technology

several tissues working together form an organ, and several organs together make up an organisms.

the group of cell that carries out special jobs are tissue.

not necessarily. higher fitness requires the organism to be reproductive successful. for example, an organism at age 10 with 15 offspring is much more fit than an organism at age 15 with only 5 offspring.