This leaf is 4 inches long." What kind of observation is this?

What type of competition exsist between two species. turtles and fish

The similarities of organisms in which two areas numbered above provide the best evidence for common ancestry between organisms in both locations?

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