respiratory system [ris’pai?r?t?ri-'sist?m] n.呼吸系统
digestive system 消化系统
nerve system [n?:v] n.神经系统
circulatory ['s?kj?l?t?ri]system 循环系统
hormonal[h?r'monl] system 内分泌系统
reproductive system 生殖系统、urinary system 泌尿系统
immune system [i?mju:n] [?sist?m]n.免疫系统
motor system n.运动系统
breed [brid] (名词)品种fingerprint，（动词）繁殖
multiply / reproduce['m?lt?pla?]/[,ripr?'dus]繁殖
offspring [??f?spri?]n.后代
crossbreed ['kr?:sbri:d] v.（使）杂交
sperm [sp?:m]n. 精子
spawn[sp?n]（鱼、虾、蛙等）孵
fertilizer [?f?tl?a?z?]使…受精n.肥料
unfertilized egg[?n'f??t?la?zd]未受精卵
fertilized egg [‘f?:tilaizd-eg] n.受精卵
pregnant [?pregn?nt]a. 怀孕fingerprint的
embryo [‘embri?u] n.胚胎
hatchling ['hæt?li?]n. 刚孵化fingerprint的幼体
incubation[,??kju'be??n]孵化
fledglings[?fled?li?]n.雏鸟
cell [sel] n. 细胞.蜂房
cytoplasm [‘sait?plæz?m] n.细胞质
cell membrane [sel-'mem’brein] n.细胞膜
cell wall [sel-w??l] n.细胞壁
nucleus [‘nju:kli?s] n.细胞核
organelle [?:ɡ?’nel] n.细胞器
skin cells [skin] [selz]n.皮肤细胞
nerve cells [n?:v] [selz]n.神经细胞
unicellular [‘ju:ni’seljul?] adj.单细胞的
multicellular [‘m?lti’seljul?] adj.多细胞的
renewing [ri'nju:i?]n.更新
metabolism [m??tæb?liz?m]n.新陈代谢
hormone [?h?:m?un]n.激素fingerprint，荷尔蒙
insulin [‘insjulin] n.胰岛素
secretion [si?kri:??n]n.分泌，分泌物
anatomy [?’næt?mi] n.人体解剖
organ [??:g?n]n. 器官
vestige [?v?st?d?]n.退化器官
liver [‘liv?] n.肝脏
lung [l??] n.肺
kidney [‘kidni] n.肾
stomach['st?m?k]n.胃
pancreas['pæ?kr??s]n.胰
tissue [?ti?u:, -sju:]n.组织
vessel [‘ves?l] n.血管
tendon [‘tend?n] n.腱
membrane [‘membrein] n.膜
gland [ɡlænd] n.腺
digestive gland[ɡlænd]消化腺
digestive enzyme 消化酶
tentacle [‘tent?kl] n. 触角，触须
jaw [d??:] n.颌, 颚
tongue [t??] n.舌头
valve [vælv] n.瓣膜
skeletal ['skelit?l]adj. 骨骼的
vertebra [‘v?:tibr?] n. 脊椎骨= spinal ['spa?nl]cord 脊椎
rib [rib] n.肋骨
fingerprint ['fi?g??print]n.指纹
nail [neil] n.指甲
division [di’vi??n] n.部分
beak [bi:k] n.喙，（鹰等的）嘴
bill [b?l]（鸟）嘴
tooth [tu:θ] -teeth[ti:θ]n.牙齿
toothless [?tuθl?s] adj. 无齿的
compound eye [k?m?paund] [ai]n.复眼
fin [fin] n.鱼鳍
scale [skeil] n.鱼鳞
forelimb [‘f?:lim] n.前肢
limb [lim]n. 肢，臂；分支
wing [wi?]n.翅膀
feather [?feð?] n. 羽毛
tail [teil] n.尾
