In which stage do vertebrate embryos or offspring show the most similarities?

Which organelle releases chemicals that break down large food particles into smaller ones?

What is the most important inorganic material for livings things? ! due tomorrow!

You find a fossil that you are sure shows evidence of bipedalism. you know this because which of the following anatomical traits is present? a. thighbones that angle in toward the knees b. a narrow pelvis c. opposable hallux d. posterior position of the foramen magnum