发育激素

The chemical mechanism for the expression of flower color is the ratio of different type of pigments in petals; the anatomic and optical mechanism for the expression of flower color are the dimensional distribution of the pigments in petals and their effects on light; and the physiological mechanism are the pH of cell sap of petal, the developmental stage and the endogenous hormones of flower.

花色素的存在及其变化是植物花色表现的化学机制，色素在花瓣中的空间分布及其对光的作用是花色表现的解剖学和光学机制，细胞液pH值、花发育阶段和植物激素是花色表现的植物生理学机制。

These years have received the hormone puzzle normal growth Chinese minor.

尤其多的是中国的小孩子，这些年一直受到激素困扰正常发育的中国未成年人。

Prenatal exposure to high level of stress hormone cortisol may affect brain development and sleep patterns.

产前暴露于高水平的应激激素皮质醇可能影响脑发育和睡眠模式。

Key Words:thyroid hormone,brain development,molecular mechanism,cretinism

甲状腺激素，脑发育，分子机制，呆小病

In order to explore the methods of evaluating of environmental hormone,this study investigated the effects of diethylstilbestrol on the development of the sexual organ of chicken embryos.

为探讨环境激素的评价方法，研究了己烯雌酚对鸡胚胎性器官发育的影响。

The result of this study showed that different swimming intensity had different effects on bone growth, the diversity of hormone was the factor which regulate bone growth.

本研究结果表明，不同的游泳强度对骨生长发育的影响效果不同，激素的不同变化可能是影响这些变化的调节因素。

" Endocrine system: Group of ductless glands that secrete hormones necessary for normal growth and development, reproduction, and homeostasis ."

内分泌系统：由无管腺体组成的系统，分泌激素以供身体正常生长、发育、繁殖和自我恒定性之需。

" Endocrine system: Group of ductless gland s that secrete hormones necessary for normal growth and development, reproduction, and homeostasis."

内分泌系统：由无管腺体组成的系统，分泌激素以供身体正常生长、发育、繁殖和自我恒定性之需。

" Endocrine system: Group of ductless glands that secrete hormone s necessary for normal growth and development, reproduction, and homeostasis."

内分泌系统：由无管腺体组成的系统，分泌激素以供身体正常生长、发育、繁殖和自我恒定性之需。

Its embryo sac matures about 45 d after pollination.

在培养后期，外源激素对胚囊发育的影响很大。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。