What is suggested by the similarity of early embryos of different species of vertebrates?
recent common ancestry
similar environments in the past
evolution from a distant common ancestor
no evolutionary relationship between the groups

Sara goes on a slingshot ride in an amusement park. she is strapped into a spherical ball that has a radius 3*10^2 of centimeters. what is the volume of air in the spherical ball? use this formula: volume of a sphere=4/3pi,r^3 , where r is the sphere’s radius.

10. in which phase will crossing-over occur? a. mitosis b. metaphase ii c. prophase i d. meiosis ii

Which statement best describes the first stage of cellular respiration? check all that apply