Alcohol is considered a because it tends to suppress central nervous system activity.

The phylogenetic tree illustrates the relationship between humans and our closest living relatives. the tree was based on biochemical comparisons, including dna and amino acid sequences. according to the biomolecular data, we could infer that a) the four organisms do not have a common ancestor. b) humans are more closely related to chimps than any other apes. c) chimps are more closely related to gorillas than they are to humans. eliminate d) there is no evidence if any relationship between the four branches on the tree.

When listening the levels of orginization in orginisims from the smallest to most complex , which level is just below organs in complexity

After a group of researchers conducts a new experiment that has never been conducted before, what is the best way for other scientists to make sure that the data is real