Which type of organism in this lab can get its nitrogen from nitrogen fixation (converting n2 gas into ammonia), allowing it to grow even if easily used forms of nitrogen are not available in its water or food?
cyanobacteria
daphnia
bosmina
trout

You have been tasked with sorting the rock samples shown into three categories, with two rocks in each category. what attribute would you use to sort these rocks? which rocks would be in each category? rocks: obsidian, coquina limestone, granite, soapstone,pumice, and gneiss.

Write a 150word essay describing the effect of people's activities on the environment in the region.

Quais são as consequencias (positivas e negativas) da extração dos minerais metálicos