blastula
发音：英 [?blɑ?stj?l?] 美 [?bl?stj?l?]
基础释义：
1. 胚层间质消失，细胞间出现明显界限的原初胚团
2. 胚胎发育的早期阶段，由一个卵裂球形成许多小细胞
英语范文：Blastula is the initial stage of embryonic development, where a single fertilized egg cell divides to form multiple smaller cells.
音标：['blɑ?stj?l?] ?z ?n [?emb?d??nt di?v?s??(r) 'stɑ?d? ] , ? [s?n 'blɑ?t??t?] da?v?ks t? 'f??ft 'o?m?t v?(r)n [?blɑ?t??ts] .
Blastula
Blastula is a fundamental stage in the development of many animals, including humans. It is a fluid-filled mass of cells that has emerged from the gastrula stage, and it represents the earliest evidence of tissue differentiation.
In humans, blastula is formed during the first few weeks of pregnancy, when the fertilized egg divides and differentiates into cells that form the body plan. This process is highly complex and requires precise regulation of gene expression.
Blastula is also a crucial stage in the development of embryos from other species, as it marks the beginning of tissue specialization and organ formation. Understanding blastula development has led to advances in medical research, including the development of new treatments for diseases such as cancer and birth defects.
In conclusion, blastula is an essential phase in the development of many animals, including humans. It represents the earliest evidence of tissue differentiation and is crucial for the formation of organs and tissues. Understanding blastula development is essential for understanding the development of embryos and for advancing medical research.
Blastula
Blastula is a critical stage in the development of an organism. It is a fluid-filled mass that forms from the fertilized egg cell, and it is the precursor to the embryo's organs and tissues. During this stage, cells begin to move and reorganize themselves, forming a complex three-dimensional structure.
Blastula is a fascinating stage in biology because it allows us to observe the earliest stages of organogenesis and tissue formation. It is also a stage that is often studied in experiments to understand how cells behave and interact with each other during development.
In terms of its pronunciation, "blast-oo-uh" is how you should say it. Here's an example of a short essay on blastula:
"Blastula, blast-oo-uh, is a crucial stage in the development of all living things. It's a ball of fluid that forms from the fertilized egg, and it's the precursor to all the organs and tissues that make up an embryo. At this stage, cells begin to move and reorganize themselves, forming a complex three-dimensional structure. It's fascinating to see how cells work together to create organs and tissues."
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