Awetland is to a watershed as a tree is to a(n)
a) garden
b) bird
c) acorn
d) forest
which of the following is not a goal of the clean water act?
a(restoration of the nations waters
b) maintenance of the chemical and physical integrity of the nations water
c) maintenance of the biological integrity of the nations waters
d( prosecution of those who are determined to go to the integrity of the nations waters

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.

Witch type of microscope is used to view very small cell components like proteins and dna?

Why are common names a problem for scientist?