Question: Q: What type of organism, including sea stars and sand dollars, is named for their spiny skin?   Read this paragraph and choose the correct option from the provided answers:  Echinoderms are named for their “spiny skin. ” However, the spines aren’t on their skin. They are part of the endoskeleton. The endoskeleton consists of calcium carbonate plates and spines, covered by a thin layer of skin. Adult echinoderms have radial symmetry. This is easy to see in the sea star and sand dollar in Figure above . However, echinoderms evolved from an ancestor with bilateral symmetry. Evidence for this is the bilateral symmetry of their larvae.   Choices:  - mollusks  - diatoms  - chordates  - echinoderms   A:
Answer: echinoderms

Question: Q: What is the average kinetic energy of particles of matter?   Read this paragraph and choose the correct option from the provided answers:  Temperature is the average kinetic energy of particles of matter.   Choices:  - momentum  - magnetism  - friction  - temperature   A:
Answer: temperature

Question: Q: Instruments that measure the angle of the slope of a volcano are called what?   Read this paragraph and choose the correct option from the provided answers:  All that magma and gas pushing upward can make the volcano’s slope begin to swell. Ground swelling may change the shape of a volcano or cause rock falls and landslides. Most of the time, the ground tilting is not visible. Scientists detect it by using tiltmeters, which are instruments that measure the angle of the slope of a volcano.   Choices:  - aberration meters  - velocity meters  - angle meters  - tilt meters   A:
Answer:
tilt meters