Which is an example of using comparative anatomy to study evolutionary relationships? comparing and contrasting the DNA of two organisms
studying the digestive system structure in two organisms
using ancient footprints to learn about an organism’s behaviors
looking at the development of a fertilized egg of an organism

You have a solution that contains phospholipid vesicles in a test tube. these vesicles have phospholipid bilayers, but do not contain any membrane transporters. you add a number of different molecules to the solution, and wait a period of time for them to equilibrate. if you could measure the concentration of each molecule, for which of the following would you expect to measure equal concentrations inside and outside of the vesicles? assume for this question that the overall osmolarity inside and outside the vesicles is the same (that is, there is no appreciable diffusion of water across the membrane). (select two answers) an amino acid with a hydrophobic side-chain a small non-polar molecule a negatively charged ion a small polar molecule a small lipid hormone

What are two reasons for why a species might disappear from the fossil record?

Match with o for organic and i for inorganic for each compound