An example of an unsaturated compound with a double bond is ___. a. ethane
b. ethyne
C. propane
d. ethene

The phylogenetic tree illustrates the relationship between humans and our closest living relatives. the tree was based on biochemical comparisons, including dna and amino acid sequences. according to the biomolecular data, we could infer that

This is the main structural axis of the plant that supports leaves, flowers and fruits; transports fluids; stores nutrients and produces new tissue.

Which is a kingdom? protistachordataprokarya mammalia