Q: Earth rotates on its axis once each day and revolves around the sun how often? Read this paragraph and choose the correct option from the provided answers: Earth rotates on its axis once each day and revolves around the Sun once every year. 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? Read this paragraph and choose the correct option from the provided answers: The scientific name of an organism consists of its genus and species. Choices: - specimens - samples - mammals - species A:
species

Q: Q: A measure of how close a series of measurements are to one another is what? Read this paragraph and choose the correct option from the provided answers: precision: A measure of how close a series of measurements are to one another. Precise measurements are highly reproducible, even if the measurements are not near the correct value. 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? Read this paragraph and choose the correct option from the provided answers: Fishes Modern fishes include an estimated 31,000 species. Fishes were the earliest vertebrates, and jawless fishes were the earliest of these. Jawless fishesthe present day hagfishes and lampreyshave a distinct cranium and complex sense organs including eyes, distinguishing them from the invertebrate chordates. The jawed fishes evolved later and are extraordinarily diverse today. Fishes are active feeders, rather than sessile, suspension feeders. Jawless Fishes Jawless fishes are craniates (which includes all the chordate groups except the tunicates and lancelets) that represent an ancient vertebrate lineage that arose over one half-billion years ago. Some of the earliest jawless fishes were the ostracoderms (which translates as "shell-skin"). Ostracoderms, now extinct, were vertebrate fishes encased in bony armor, unlike present-day jawless fishes, which lack bone in their scales. The clade Myxini includes 67 species of hagfishes. Hagfishes are eel-like scavengers that live on the ocean floor and feed on dead invertebrates, other fishes, and marine mammals (Figure 15.37a). Hagfishes are entirely marine and are found in oceans around the world except for the polar regions. A unique feature of these animals is the slime glands beneath the skin that are able to release an extraordinary amount of mucus through surface pores. This mucus may allow the hagfish to escape from the grip of predators. Hagfish are known to enter the bodies of dead or dying organisms to devour them from the inside. Choices: - grasses - ferns - mammals - vertebrates A:
Answer: vertebrates

*Question*
Q: What reaction means, literally, "splitting with water"? Read this paragraph and choose the correct option from the provided answers: Esters are neutral compounds, unlike the acids from which they are formed. In typical reactions, the alkoxy (OR) group of an ester is replaced by another group. One such reaction is hydrolysis, literally "splitting with water. " The hydrolysis of esters is catalyzed by either an acid or a base. Acidic hydrolysis is simply the reverse of esterification. The ester is heated with a large excess of water containing a strong-acid catalyst. Like esterification, the reaction is reversible and does not go to completion. 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? Read this paragraph and choose the correct option from the provided answers: A liquid is a state of matter in which particles can slip past one another and take the shape of their container. However, the particles cannot pull apart and spread out to take the volume of their container. Choices: - gas - mixture - chemical - liquid A:
(A).
liquid