Your molecular clock model resembles another branching chart, the phylogenetic chart, which you’ve used in this unit. Review the sample phylogenetic chart. What types of data are used to build a phylogenetic chart? How do phylogenetic charts differ from molecular models, such as the molecular clock model?

but there is no

i guess you forgot putting it.

propane is burned to provide the heat in many cooking grills. the chemical reaction for this process is shown in the equation below.

c3h8 + 5o2 ? 3 co2 + 4h2o + energy

what are the products in this chemical reaction?

3co2 + 4h2o + energy

answer; lower are;

the answer is c. have a great day; )