Q: Earth rotates on its axis once each day and revolves around the sun how often? Choices: - once each month - ever 3 years - every other year - once each year A:
once each year

Q: The scientific name of an organism consists of its genus and what else? Choices: - specimens - samples - mammals - species A:
species

Q: Q: A measure of how close a series of measurements are to one another is what? Choices: - calculation - density - reflection - precision A:
A: precision

Question: Q: Fishes were the earliest example of what subphylum, and jawless fishes were the earliest of these? Choices: - grasses - ferns - mammals - vertebrates A:
Answer: vertebrates

*Question*
Q: What reaction means, literally, "splitting with water"? Choices: - aqueous - hydroxis - fission - hydrolysis A:
**Answer**
hydrolysis

(Q).
Q: In which state of matter do particles take the shape of their container, but cannot expand to fill it? Choices: - gas - mixture - chemical - liquid A:
(A).
liquid