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 phylogenetic 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.

the answer is a) cell division.

hope this !

1. amino acid refers to the fundamental building block of proteins, comprising of an amino group and a carboxyl group.

2. catalyst refers to any substance, which increases the rate of chemical reaction without being used up in the reaction.

3. a complex molecule containing he genetic code is dna or deoxyribonucleic acid.

4. an enzyme refers to a molecule of protein, which is unique in accelerating up a particular chemical reaction in the biological systems.

5. nucleic acid refers to an sequence of sugars, phosphates, and nitrogenous bases, for example, dna and rna.

6. a protein refers to a large, composite organic molecule comprising of a huge number of amino acids associated together with the of peptide bonds.

7. rna refers to a nucleic acid that takes part in the production of proteins.

8. substrate refers to a compound, which takes part in a chemical reaction, and is chemically modified by the reaction.

i think the correct answer from the choices listed above is option c. the statement that is correct about   the cave and geyser would be that the cave is formed when groundwater reacts with the limestone in rocks and the geyser is formed when groundwater gets heated. hope this answers the questio