Thông tin liên hệ
Bài viết của Lê Thị Khánh Huyền

Heat Transfer Methods

Equally as interesting as the effects of heat transfer on a system are the methods by which this occurs. Whenever there is a temperature difference, heat transfer occurs. Heat transfer may occur rapidly, such as through a cooking pan, or slowly, such as ...

Tác giả: Lê Thị Khánh Huyền viết 15:27 ngày 25/05/2018 chỉnh sửa

Discovering How Populations Change

The theory of evolution by natural selection describes a mechanism for species change over time. That species change had been suggested and debated well before Darwin. The view that species were static and unchanging was grounded in the writings of Plato, yet ...

Tác giả: Lê Thị Khánh Huyền viết 15:26 ngày 25/05/2018 chỉnh sửa

Mammals

are vertebrates that possess hair and mammary glands. Several other characteristics are distinctive to mammals, including certain features of the jaw, skeleton, integument, and internal anatomy. Modern mammals belong to three clades: monotremes, marsupials, ...

Tác giả: Lê Thị Khánh Huyền viết 15:26 ngày 25/05/2018 chỉnh sửa

Structural Organization of the Human Body

Before you begin to study the different structures and functions of the human body, it is helpful to consider its basic architecture; that is, how its smallest parts are assembled into larger structures. It is convenient to consider the structures of the body ...

Tác giả: Lê Thị Khánh Huyền viết 15:25 ngày 25/05/2018 chỉnh sửa

Organs with Secondary Endocrine Functions

In your study of anatomy and physiology, you have already encountered a few of the many organs of the body that have secondary endocrine functions. Here, you will learn about the hormone-producing activities of the heart, gastrointestinal tract, kidneys, ...

Tác giả: Lê Thị Khánh Huyền viết 15:25 ngày 25/05/2018 chỉnh sửa

Vertebrates

are among the most recognizable organisms of the animal kingdom ([link]). More than 62,000 vertebrate species have been identified. The vertebrate species now living represent only a small portion of the vertebrates that have existed. The best-known extinct ...

Tác giả: Lê Thị Khánh Huyền viết 15:25 ngày 25/05/2018 chỉnh sửa

Quantization of Energy

Energy is quantized in some systems, meaning that the system can have only certain energies and not a continuum of energies, unlike the classical case. This would be like having only certain speeds at which a car can travel because its kinetic ...

Tác giả: Lê Thị Khánh Huyền viết 15:25 ngày 25/05/2018 chỉnh sửa

Beneficial Prokaryotes

Not all prokaryotes are pathogenic. On the contrary, pathogens represent only a very small percentage of the diversity of the microbial world. In fact, our life would not be possible without prokaryotes. Just think about the role of prokaryotes in ...

Tác giả: Lê Thị Khánh Huyền viết 15:24 ngày 25/05/2018 chỉnh sửa

Color and Color Vision

The gift of vision is made richer by the existence of color. Objects and lights abound with thousands of hues that stimulate our eyes, brains, and emotions. Two basic questions are addressed in this brief treatment—what does color mean in scientific ...

Tác giả: Lê Thị Khánh Huyền viết 15:24 ngày 25/05/2018 chỉnh sửa

Glycolysis

Even exergonic, energy-releasing reactions require a small amount of activation energy to proceed. However, consider endergonic reactions, which require much more energy input because their products have more free energy than their reactants. Within the cell, ...

Tác giả: Lê Thị Khánh Huyền viết 15:24 ngày 25/05/2018 chỉnh sửa