Q: Q: The structure of the human tail bone is called what? Choices: - a abnormal structure - a vital structure - an artifact - a vestigial structure A:
A: a vestigial structure

Q: Q: What type of climates are found around the equator? Choices: - arid - tundras - arctics - tropical A:
A: tropical

Q: Q: How did a vascular let plants grow? Choices: - they could conduct photosynthesis - they could bear fruit - they could reproduce - they could grow taller A:
A: they could grow taller

Q: Q: What is the sum of the massess of the atoms in a molecule? Choices: - underlying mass - magnetic mass - nuclear mass - molecular mass A:
A: molecular mass