Answer the following question given this paragraph: The highest-numbered shell is the third shell, which has 2 electrons in the 3s subshell and 3 electrons in the 3p subshell. That gives a total of 5 electrons, so neutral phosphorus atoms have 5 valence electrons. The 10 remaining electrons, from the first and second shells, are core electrons. Q: How many valence electrons do neutral phosphorus atoms have? Choices: - nine - three - four - five A:
five
(Question)
Answer the following question given this paragraph: Cell division is just one of several stages that a cell goes through during its lifetime. The cell cycle is a repeating series of events that include growth, DNA synthesis, and cell division. The cell cycle in prokaryotes is quite simple: the cell grows, its DNA replicates, and the cell divides. In eukaryotes, the cell cycle is more complicated. Q: What is defined as a repeating series of events that include growth, dna synthesis, and cell division? Choices: - photosynthesis - meiosis - puberty - cell cycle A:
(Answer)
cell cycle
Ques: Answer the following question given this paragraph: Electric current is a continuous flow of electric charge. It is measured in amperes (A). Direct current (DC) flows in just one direction. Alternating current (AC) keeps reversing direction. Q: What is a continuous flow of electric charge called? Choices: - powered current - microwave current - magnetism - electric current A:
Ans: electric current
(Q).
Answer the following question given this paragraph: Solid ionic compounds are poor conductors of electricity. The strong bonds between ions lock them into place in the crystal. However, in the liquid state, ionic compounds are good conductors of electricity. Most ionic compounds dissolve easily in water. When they dissolve, they separate into individual ions. The ions can move freely, so they are good conductors of electricity. Dissolved ionic compounds are called electrolytes. Q: In what state do ionic compounds best conduct electricity? Choices: - gas - solid - plasma - liquid A:
(A).
liquid
Ques:Answer the following question given this paragraph: Frogs and toads are adapted for jumping. Salamanders and newts may walk or swim. Caecilians live in the water or soil and are the only amphibians without legs. Q: What is the only amphibian without legs? Choices: - alligators - frogs - newts - caecilians A:

Ans:caecilians
Answer the following question given this paragraph: Most cancers are caused by mutations. Mutations are random errors in genes. Mutations that lead to cancer usually occur in genes that control the cell cycle. Because of the mutations, abnormal cells are allowed to divide. Q: What is the most common cause of cancer? Choices: - poor diet - smoking - technology mutations - cell mutations A:
cell mutations