SAT2生物考试专业词汇H

　　下面为大家整理的是关于SAT2生物专业词汇中以字母H为开头的相关词汇，包括了详细的汉语翻译和英语含义解析。大家在备考SAT2生物考试的时候，重要的一个备考项目就是记忆相当数量的专业词汇。一起来看看详细内容吧。

　　haploid number(单倍目)

　　The number of homologous pairs in a cell. Equal to half the diploid number. Gametes, cells that are passed on to offspring, contain the haploid number of chromosomes. In humans, the haploid number is 23.

　　Heart(心)

　　The muscular organ that pumps blood through the circulatory system. Mammals and birds have a four-chambered heart, with a left atrium and ventricle and a right atrium and ventricle. The right half of the heart receives deoxygenated blood from the body and pumps it to the lungs, while the left half receives oxygenated blood from the lungs and pumps it to the body.

　　Heredity(遗传)