An astronomer has proposed a new theory about the evolution of the universe. what is the next step that the astronomer should take to make his theory reliable? a. allow other scientists to repeat the experiments to verify the results
b. publish the theory in a science magazine to let people know about it
c. discuss the theory on television to make it popular
d. explain the theory with models to make it more interesting

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 group of molecules are targeted by the kinases in order to control this movement

Why are current extinctions of concern to enviromentalists?