Which of the following would most likely be considered non-point source pollution?

a) animal waste from a local horse farm seeping into the ground

b) increased turbidity from erosion

c) a car repair shop dumping used oil in the ground

d) a leaky underground oil tank

The construction of phylogenetic trees is a mapping out the proposed divisions and common ancestors of all living species. traditionally, these trees have been built using morphological data, such as appearance and embryology. recently, it has been possible to construct these trees using molecular data. phylogenetic trees based on different types of information agree with each: that there is strong evidence of a real underlying common descent. this phylogenic tree is composed based on molecular data (rrna). what statements can we infer are true about the organisms throughout the tree? because the tree is rooted, all branches share a common ancestor. all organisms have some sort of cellular structure/organization. all eukaryotes evolved from bacteria. since the organisms contain rna, they share the same dna. if the organisms contain rna, the share the same four nitrogen bases.

Which type of bond forms between water moleculesstrong bondhydrogen bondcovalent bondpolar bond

Why is it important to study each branch of earth science?