Corals get their colors from that live inside their tissues.

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.

What is an example of a scientific question that galileo could not have answered with out this new tool?

Are humans interfering with or a part of evolution happening today? find examples of evolution seen in recent history that could be caused by human activity.