Limestone is made of rock and animal shell fragments. it is
a metamorphic rock
an intrusive igneous rock
an inorganic mineral
an organic sedimentary rock

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.

Solutions to environmental problems in europe must

Where can dna be found in a prokaryotic cell