How does the fossil record suggest common ancestry?

What is an example of a vestigial structure in humans?

Describe the importance of amino acid sequencing in the study of evolution

Jewelweed, a flowering plant, has seed pods that burst open when touched and forcefully eject their seeds. these structures are favorable because they a. can cause genetic changes to occur. b. prevent germination within the seed pod. c. aid in the dispersal of the species. d. attract insects that aid in pollination.

Which type of bond is present in hydrogen sulfide (h2s)? the table of electronegativities is given. a. hydrogen b. ionic c. nonpolar covalent d. polar covalent

Draw a line graph showing the relationship between temperature in kelvin as a function of kinetic energy.