Q: What substances affect the brain and influence how a person feels, thinks, or acts? Read this paragraph and choose the correct option from the provided answers: Psychoactive drugs affect the brain and influence how a person feels, thinks, or acts. They include medicines and other legal drugs as well as illegal drugs. They may stimulate or depress the central nervous system. Abuse of such drugs may lead to drug addiction, overdose, and death. Choices: - H2 blockers - primeval drugs or drugs - amphetamines - psychoactive drugs or drugs A:
psychoactive drugs or drugs

Q: In multicellular organisms, specialized cells may be organized into what, which in turn may be organized into organs? Read this paragraph and choose the correct option from the provided answers: In multicellular organisms, specialized cells may be organized into tissues. Tissues may be organized into organs, and organs may be organized into organ systems. Organ systems work together to carry out all the functions of the whole organism. Choices: - nutrients - muscles - blood cells - tissues A:
tissues

Q: Q: What do opposite charges do to one another? Read this paragraph and choose the correct option from the provided answers: Opposite charges attract, and like charges repel. Choices: - strengthen - weaken - repel - attract A:
A: attract

Question: Q: What is it called when currents keep reversing direction? Read this paragraph and choose the correct option from the provided answers: When current keeps reversing direction, it is called alternating current (AC) . You can see how it works in the two diagrams below. The current that comes from a power plant and supplies electricity to homes and businesses is alternating current. The current changes direction 60 times per second. It happens so quickly that the light bulb doesn't have a chance to stop glowing when the reversals occur. Choices: - circle current - emitting current - stream current - alternating current A:
Answer: alternating current

*Question*
Q: What state of matter completes the list: solid, liquid, gas? Read this paragraph and choose the correct option from the provided answers: A snowflake is made of ice, or water in the solid state. A solid is one of four well-known states of matter. The other three states are liquid, gas, and plasma. Compared with these other states of matter, solids have particles that are much more tightly packed together. The particles are held rigidly in place by all the other particles around them so they can't slip past one another or move apart. This gives solids a fixed shape and a fixed volume. Choices: - energy - ice - power - plasma A:
**Answer**
plasma

Q: Q: What kind of charge do electrons have? Read this paragraph and choose the correct option from the provided answers: electrons, which have a negative electric charge. Choices: - effective - unusual - positive - negative A:
A: negative