How does the fossil record corroborate phylogenetic hypotheses?

events that occur early in the fossil record are represented by branching events nearer to the root of a phylogenetic tree.
events that occur early in the fossil record are represented by branching events nearer to the tips of a phylogenetic tree.
fossil record events are too old to be represented on phylogenetic trees, which reconstruct the more recent past.
events in the fossil record occur randomly throughout a phylogenetic tree, so the two are not related to one another.
the timing of evolutionary events in the fossil record is not consistent with the branching order of a phylogenetic tree.

The correct answer is: Events that occur early in the fossil record are represented by branching events nearer to the root of a phylogenetic tree.  

Fossil records explain the history and evolution of life based on fossils. Fossils are remains of organisms preserved in sedimentary rock. In fossil records they are analyzed and arranged chronologically and in taxonomic order, so that can represent the evolution.

Phylogenies describes the relationships between organisms (species): from which organisms it is evolved, to which species it is most closely related etc. and it is represented as a diagram or phylogenetic tree. It is used to organize living organisms into specific categories. Characteristics of fossils are used to generate a phylogenetic tree, more precisely their roots that represent common ancestors.

water is a polar molecule. a chemical bond is a force of attraction between atoms or ions. bonds form when atoms share or transfer valence electrons. atoms form chemical bonds to achieve a full outer energy level, which is the most stable arrangement of electrons. so, false

explanation:

in h2o molecule, two water molecules are bonded by a hydrogen bond but the bond between two h - o bonds within a water molecule are covalent. the greater the electronegativity difference, the more ionic the bond is. bonds that are partly ionic are called polar covalent bonds. nonpolar covalent bonds, with equal sharing of the bond electrons, arise when the electronegativities of the two atoms are equal.