Where does digestion and absorption take place in an earthworm?

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

Which of the following describes a difference when gram-positive bacteria are compared to gram-negative bacteria?

How would you describe the the organisms in the second row of model 1 that are connected to the parents by a line