Problem:OPTIONS:
- anion
- a cation
- neutral
- an ion

Answer the following question given this paragraph: If an atom gains electrons, it becomes an ion. Is the ion positively or negatively charged? Explain your answer. Q: If an atom gains electrons, it becomes what? A:
****
A: an ion

Answer the following question given this paragraph: All machines make work easier, but they don't increase the amount of work that is done. You can never get more work out of a machine than you put into it. In fact, a machine always does less work on an object than the user does on the machine. That's because a machine must use some of the work put into it to overcome friction. Friction is the force that opposes motion between any surfaces that are touching. All machines involve motion, so they all have friction. How much work is needed to overcome friction in a machine depends on the machine's efficiency. Q: What is the term for force that opposes motion between any touching surfaces? A:
OPTIONS:
- gravity
- stress
- tension
- friction
friction

Answer the following question given this paragraph: Protists do not create food sources only for sea-dwelling organisms. For instance, certain anaerobic parabasalid species exist in the digestive tracts of termites and wood-eating cockroaches, where they contribute an essential step in the digestion of cellulose ingested by these insects as they bore through wood. Q: Certain anaerobic parabasalid species exist in the digestive tracts of termites and wood-eating cockroaches, where they contribute an essential step in the digestion of this? A:
OPTIONS:
- carbonate
- fiber
- nutrients
- cellulose

Answer: cellulose

Question: Answer the following question given this paragraph: A composite volcano forms the tall cone shape you usually think of when you think of a volcano. Shield volcanoes are huge, gently sloping volcanoes. Cinder cones are small, cone-shaped volcanoes. Q: What is the type of volcano with a tall cone shape that you picture when picturing a volcano? A:
OPTIONS:
- advanced
- active
- inactive
- composite
Answer: composite

input with options: Answer the following question given this paragraph: 30.2 Discovery of the Parts of the Atom: Electrons and Nuclei Atoms are composed of negatively charged electrons, first proved to exist in cathode-ray-tube experiments, and a positively charged nucleus. All electrons are identical and have a charge-to-mass ratio of. Q: Atoms are composed of negatively charged electrons and a positively charged what? A:
OPTIONS:
- DNA segment
- neutron
- bond
- nucleus
output: nucleus

Problem: OPTIONS:
- Insects
- fishes
- diatoms
- mollusks
Q: Answer the following question given this paragraph: Which of the following statements about the anatomy of a mollusk is false? a. Mollusks have a radula for scraping food. Mollusks have ventral nerve cords. The tissue beneath the shell is called the mantle. The mantle cavity contains hemolymph. Mollusk Diversity This phylum is comprised of seven classes: Aplacophora, Monoplacophora, Polyplacophora, Bivalvia, Gastropoda, Cephalopoda, and Scaphopoda. Class Aplacophora ("bearing no plates") includes worm-like animals living mostly on deep ocean bottoms. These animals lack a shell but have aragonite spicules on their skin. Members of class Monoplacophora ("bearing one plate") have a single, cap-like shell enclosing the body. The monoplacophorans were believed extinct and only known as fossils until the discovery of Neopilina galatheae in 1952. Today, scientists have identified nearly two dozen living species. Animals in the class Polyplacophora ("bearing many plates") are commonly known as "chitons" and bear an armor-like, eight-plated shell (Figure 15.25). These animals have a broad, ventral foot that is adapted for attachment to rocks and a mantle that extends beyond the shell in the form of a girdle. They breathe with ctenidia (gills) present ventrally. These animals have a radula modified for scraping. A single pair of nephridia for excretion is present. Q: Bivalvia and gastropoda are classes of what phylum? A:
Answer:
mollusks