SAT2考试是SAT subject test的通常说法，SAT2考试有别于SAT1，它是一种专项考试，考察学生某一科目的能力。下面澳际小编搜集整理了SAT2生物考试专业词汇中以字母I打头的词汇，希望能够帮助大家更好地备考SAT2生物考试。

　　intertidal zone(潮间带)：涨潮线与落潮线中间之地区

　　The most shallow zone in a marine habitat. Periodically dry or wet with the changing tides. Algae, sponges, mollusks, starfish, and crabs inhabit this zone. Also called the littoral zone.

　　Ion(离子)

　　An atom or molecule that has lost or gained an electron and consequently has a positive or negative charge.

　　Isotonic(同渗压的)

　　A situation in which the concentration of solutes in a solution is equivalent to what it contains. There is no concentration gradient in isotonic solutions and no net flow of solutes or water.

　　inheritance of acquired traits(获得性状遗传)

　　A crucial, and incorrect, aspect of Lamarck’s theory of evolution. Lamarck believed that the traits a parent acquired during its lifetime would be passed on to its offspring.

　　Instincts(本能)

　　Behavior that is hardwired into the brain of an organism; behavior that does not have to be learned.

　　Insulin(胰岛素)

　　Hormone secreted by the pancreas that reduces blood sugar levels. A lack of insulin can result in diabetes.

　　independent assortment(单独分类)

　　Mendel’s conclusion that during gamete formation, the segregation of one pair of genes has no influence over the segregation of another pair of hereditary units. Two different traits will thus be inherited independently of each other. This law holds true, except for linked genes. It is often called Mendel’s second law.

　　Interphase(间期)

　　The phase of the eukaryotic cell cycle in which the cell prepares for division, primarily by replicating its DNA. After interphase, the cell enters mitosis.

　　以上便是澳际小编为大家整理的SAT2生物考试专业词汇中以字母I打头的词汇的相关介绍，希望对大家有所帮助。更多SAT考试相关资料尽在澳际教育网SAT考试频道，澳际小编祝大家都能取得理想的SAT2生物考试成绩!

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