Adult echinoderms have radial symmetry, and echinoderms are represented by the starfish. Given these facts, adult starfish have what among the following options: - a cuticle - plankton - whales - sensory neurons - layers of fat - radial symmetry - kinetic energy - adults
radial symmetry

Heating a liquid can be used to identify that liquid 's boiling point, and heat is caused by vibrations of the atoms and molecules of substances. Given these facts, to identify that liquid 's boiling point requries among the following options: - vibrations of the atoms - kinetic energy - degrees Celsius - The bending of a ray of light - degrees celcius - Evaporation of water - evaporative cooling - fissures of hot, acidic water
vibrations of the atoms

Having no natural predators increases population size, and and thousands of new babies means a population increase. Given these facts, having thousands of new babies means what among the following options: - major threat to health - no natural predators - Animal survival - the body's largest organ - members of their own species - Plant growth is reduced - Reproduction - genetic material
no natural predators

Fungi have special structures for penetrating a host, and fungi include yeasts, molds, and fleshy fungi. Given these facts, what have special structures for penetrating a host among the following options: - molds - elms - ferns - orchids - bats - gills - apples - amoeba
molds