It would be Primary because the lake is it’s starting point and the pollution grew all the way to the factory.
4) digestive and circulatory, because the bladder is part of the digestive system. The circulatory system carries blood around the body using blood vessels.
Prokaryotes do not have membrane bound organelles, but eukaryotes do.
Definition. The hypothesis accepted to be true if the null hypothesis is rejected based on statistical evidence. Supplement. In the statistical testing of hypothesis, the two rival hypotheses are the null hypothesis and the alternative hypothesis.
Thru their stomata i think
