(Q).
Answer the following question given this paragraph: As you can see in Figure above , a transformer consists of two wire coils wrapped around an iron core. When alternating primary current passes through coil P, it magnetizes the iron core. Because the current is alternating, the magnetic field of the iron core keeps reversing. This changing magnetic field induces alternating current in coil S, which is part of another circuit. In Figure above , coil P and coil S have the same number of turns of wire. In this case, the voltages of the primary and secondary currents are the same. However, when the two coils have different numbers of turns, the voltage of the secondary current is different than the voltage of the primary current. Both cases are illustrated in Figure below . Q: When alternating primary current passes through coil p, it does what to the iron core? Choices: - electrilizes it - creates it - heats it - magnetizes it A:
(A).
magnetizes it

(Q).
Answer the following question given this paragraph: Q: What helps the cell continually renew itself? Choices: - vacuole - centrosome - lymphocytes - lysosomes A:
(A).
lysosomes

(Q).
Answer the following question given this paragraph: All vertebrate organisms are in the phylum Chordata. Invertebrates, which make up about 95% (or more) of the animal kingdom, are divided into over 30 different phyla, some of which are listed below ( Table below ). Numerous invertebrate phyla have just a few species; some have only one described species, yet these are classified into separate phyla because of their unique characteristics. For example, sponges, with pores throughout their body, are from the phylum Porifera. Crabs and lobsters, with jointed appendages, are from the phylum Arthropoda. Q: Which phylum are all vertebrate organisms a member of? Choices: - pylum protozoa - phylum hominid - phylum arthropod - phylum chordata A:
(A).
phylum chordata