路易斯和布鲁克斯认为，当儿童不借助于观察偶然行为，也能通过视觉认出自己时，他们就达到了发育的一个重要里程碑。
Lewis and Brooks argued that an important developmental milestone is reached when children become able to recognize themselves visually without the support of seeing contingent movement.
即使是前肢发育不全的羽毛也能扩大手臂的表面积，以略微提高升力。
Even rudimentary feathers on forelimbs could have expanded the arm's surface area to enhance lift slightly.
翻滚，能自己坐起来，在够得着的范围内伸手抓到一个玩具，这些在宝宝发育阶段中都是一个里程碑。
Turing over, sitting up by himself, and being able to grasp a toy within reach are all milestones in baby development.
REM睡眠是大脑发育的关键动力，它甚至能改造大脑。
REM sleep is a critical driver of brain development, and literally rebuilds the brain.
也就是说，人类在进化中丢弃了这个特殊的开关，而这个缺失的开关让大脑能发育更高级。
That is to say, when humans evolved without a particular switch, the absence of that switch allowed the brain to grow further.
从弯曲的公羊角到蜘蛛网的图形以及胚胎发育，波尔先生解释了我们能观察到的图形及形状可能的成因。
From the curl of a ram's horn to patterns of spider webs and the development of an embryo, Mr Ball examines the possible causes of the shapes and forms we observe.
一些人，尤其是那些倾向于发育不完全身体的人，通过被能识别到的温度下降所标记，他们的真手开始被大脑所忽视。
In some people - especially those prone to a poorly developed body schema-the real hand then starts to get ignored by the brain, marked by a discernable temperature drop.
这种基因能产生一种蛋白质，这种蛋白质能控制一个细胞能产生的其他蛋白质的数量，而且对蛔虫的研究表明，该基因参与整个生命的生长和发育阶段。
The gene makes a protein that controls the quantities of other proteins a cell produces, and studies in roundworms suggest that the gene is involved in growth and development throughout life.
心脏中不同的前体细胞能发育成两种不同类型的心脏细胞——肌细胞和非肌细胞。
Different sets of progenitor cells in the heart give rise to two different types of heart cells—muscle and nonmuscle.
科学家知道许多化学物质包括多环芳烃能通过胎盘，但是他们不理解的是这些物质是如何渗入到胎儿发育的大脑中的。
Scientists know that many chemicals including PAHs can cross the placenta, but they don't understand how they may interfere with a fetus' developing brain.
现阶段A SD尚无根治方法，科学研究致力于揭示其根源和复杂性。及时的干预能极大提高患儿的发育水平。
While there's no cure for ASDs, research continues to untangle the roots and complexities of these disorders — and early intervention can greatly improve a child's development.
保持这个正确的坐姿能保护你避免损伤，促进正确的骨骼发育。
Maintaining good posture can help you avoid injury and promote proper bone alignment.
母乳是安全的，为婴儿提供其所需要的有益于其健康发育的营养素，并含有一些抗体，能保护婴儿免受儿童常见病的侵袭。
It is safe, gives babies the nutrients they need for healthy development and contains antibodies that help protect infants from common childhood illnesses.
人体生长激素能促进身体健康成长，细胞修复和再生，这对肌肉的发育是非常有必要的。
HGH stimulates healthy growth, cell repair and the regeneration which is necessary for muscle development.
可是万能细胞可以发育成完整的器官。
发表在同行审阅杂志上的最新调查结果说，人来中叫做Sirtuin1的同样的酶能增强记忆也能提高神经元细胞的发育。
Called Sirtuin1 in humans, that same enzyme seems to enhance memory and nerve-cell development in the brain as well, according to the new findings, published in the peer-reviewed journal Nature.
这样一来，躲猫猫能够不断提供及保持一种完美平衡，介于发育中的婴儿对世界的认知、他们能控制什么及他们仍然什么感到惊讶。
In this way peekaboo can keep giving, allowing a perfect balance of what a developing baby knows about the world, what they are able to control and what they are still surprised by.
现在我们有一个信号蛋白质能支持毛发发育的微环境，可能支持其更新。
Now we have a signal protein that can support the microenvironment for hair development, and maybe also for hair renewal.
他们说，有可能研究出一种能保护胎儿脑部发育的药品，即便是那些不能戒酒的孕妇也能产生效果。
It is possible, they say, that a medication can be created to protect the brains of developing fetuses, even if pregnant women cannot quit drinking.
即使在幼犬刚出生的头四周里，你也能很有效的影响他们的行为与智力发育。
You can effectively influence your pup's behavior and mental development even in its first four weeks of life.
食物不足能影响儿童的发育。
他们希望分类能反映植物的系统发育。
They will want the classification to reflect the phylogeny of the plants.
心血管和温度调节系统未发育完全。他们的心率很快会达到极值而且很容易过热。要确保他们能得到恰当的喝水空隙。
Cardiovascular and temperature regulation system is not developed. Their heart rate peaks quickly and they overheat quickly. Make sure that they get adequate water breaks.
报告称，硅物质对于骨骼和结缔组织的生长和发育很重要，能帮助降低患骨质疏松症的风险。
The mineral is important for the growth and development of bone and connective tissue and helping reduce the risk of the bone-thinning disease osteoporosis, the report said.
线粒体是哺乳动物的产能、供能细胞器，与生长、发育、衰老和凋亡等多种细胞事件及疾病有关。
Mitochondria, which can produce and supply energy for mammals, are involved in many cellular events of growth, development, aging, apoptosis as well as diseases.
线粒体是哺乳动物的产能、供能细胞器，与生长、发育、衰老和凋亡等多种细胞事件及疾病有关。
Mitochondria, which can produce and supply energy for mammals, are involved in many cellular events of growth, development, aging, apoptosis as well as diseases.
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