*Question*
If fern reproduction often requires pollen, then what often requires pollen to reproduce? Answer choices: - burrs - humans - trees - RNA - hummingbirds - ferns - bees - seeds
**Answer**
ferns

*Question*
If mutation creates biodiversity, then mutation creates? Answer choices: - colors - biodiversity - Animal survival - genetic defects - Plants growth - rapid expansion - genetic splitting - genetic similarities
**Answer**
biodiversity

*Question*
If sea urchins have radial symmetry, then what has radial symmetry? Answer choices: - sea urchins - A Greek letter - humans - Most plants - peachleaf willow - catfish - gastropod shells - ducks
**Answer**
sea urchins

*Question*
If the Great Barrier Reef was formed by exoskeletons, then what was formed by exoskeletons? Answer choices: - heat produced - remains of prehistoric life - layers of fat - The area was once underwater - the Great Barrier Reef - the body's largest organ - sedimentary rocks - it keeps an organism warm
**Answer**
the Great Barrier Reef