Jove
Visualize
联系我们
JoVE
x logofacebook logolinkedin logoyoutube logo
关于 JoVE
概览领导团队博客JoVE 帮助中心
作者
出版流程编辑委员会范围与政策同行评审常见问题投稿
图书馆员
用户评价订阅访问资源图书馆顾问委员会常见问题
研究
JoVE JournalMethods CollectionsJoVE Encyclopedia of Experiments存档
教育
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab Manual教师资源中心教师网站
使用条款与条件
隐私政策
政策

相关概念视频

Equilibrium and Balance01:15

Equilibrium and Balance

4.9K
The inner ear assumes dual functionalities of auditory perception and equilibrium maintenance. The vestibule is the organ responsible for balance. This organ contains mechanoreceptors, specifically hair cells, endowed with stereocilia, which aid in deciphering information regarding the position and motion of our heads. Two intrinsic components, the utricle and saccule, help perceive head position, while the semicircular canals track head movement. Neurological messages initiated in the...
4.9K
Heritability01:06

Heritability

248
Heritability is a statistical concept that measures the degree to which genetic differences among individuals contribute to trait variations within a population. It is a fundamental idea in genetics, often prone to misinterpretation. Heritability is expressed as a percentage, reflecting the proportion of variation in a specific trait across a population that can be linked to genetic differences. However, it's important to understand that heritability does not determine how "genetic"...
248
Categories of Equilibrium01:30

Categories of Equilibrium

2.5K
Equilibrium is a crucial concept in physics, enabling us to understand how forces interact with bodies to produce no or constant motion. In two-dimensional equilibrium, force systems can be classified into different categories based on their characteristics.
One of the categories of equilibrium is collinear equilibrium, which involves forces acting along a straight line. This type of equilibrium requires only one force equation in the direction of the forces, as the other equations are...
2.5K
Epistasis01:39

Epistasis

47.1K
In addition to multiple alleles at the same locus influencing traits, numerous genes or alleles at different locations may interact and influence phenotypes in a phenomenon called epistasis. For example, rabbit fur can be black or brown depending on whether the animal is homozygous dominant or heterozygous at a TYRP1 locus. However, if the rabbit is also homozygous recessive at a locus on the tyrosinase gene (TYR), it will have an unshaded coat that appears white, regardless of its TYRP1...
47.1K
What is Natural Selection?01:32

What is Natural Selection?

115.9K
Natural selection is an evolutionary process in which individuals with survival-promoting traits reproduce at higher rates. These favorable traits become more common within a population or species. Naturally selected traits initially arise via random genetic mutations. In order for selection to occur, there must be variation within a population, the trait controlling the variation must be heritable, and there must be an evolutionary advantage for variation in the trait.
115.9K
Taxonomy01:31

Taxonomy

75.0K
Taxonomy is the science of defining and naming groups of biological organisms based on shared characteristics. It uses a hierarchy of increasingly inclusive categories with Latin names. The smallest units of taxonomy, species and genus, are used to assign a formal, taxonomic name to each species in a system. This classification system, referred to as binomial nomenclature, was formalized by Carolus Linnaeus in the 18th century.
Hierarchy of Taxonomy
The hierarchy that Carolus Linnaeus first...
75.0K

您也可能阅读

相关文章

通过共同作者、期刊和引用图与本文相关的文章。

排序
Same author

British 'First Fleet' brought smallpox to Australia.

Science (New York, N.Y.)·2026
Same author

Ghost of long-extinct ancestor lives on in people today.

Science (New York, N.Y.)·2026
Same author

Rise of farming, cultural shifts supercharged human evolution.

Science (New York, N.Y.)·2026
Same author

Neanderthals lived on a knife's edge for 350,000 years.

Science (New York, N.Y.)·2026
Same author

Runners-up.

Science (New York, N.Y.)·2025
Same author

A headless mystery.

Science (New York, N.Y.)·2025

相关实验视频

Updated: Aug 4, 2025

Development of an in vitro model system for studying the interaction of Equus caballus IgE with its high-affinity receptor FcεRI
07:31

Development of an in vitro model system for studying the interaction of Equus caballus IgE with its high-affinity receptor FcεRI

Published on: November 1, 2014

12.5K

马国家

Andrew Curry

    Science (New York, N.Y.)
    |March 30, 2023
    PubMed
    概括

    在西班牙人征服之后, 这一发现重新塑造了我们对土著历史和文化演变的理解.

    科学领域:

    • 人类学
    • 历史
    • 考古学

    背景情况:

    • 西班牙人征服美洲后马的到来是一个关键事件.
    • 之前的历史记录表明,马在美洲原住民部落的广泛采用和影响的时间表较晚.

    更多相关视频

    Analysis of Chromosome Segregation, Histone Acetylation, and Spindle Morphology in Horse Oocytes
    12:11

    Analysis of Chromosome Segregation, Histone Acetylation, and Spindle Morphology in Horse Oocytes

    Published on: May 11, 2017

    11.0K
    High-Resolution Fluoro-Respirometry of Equine Skeletal Muscle
    07:39

    High-Resolution Fluoro-Respirometry of Equine Skeletal Muscle

    Published on: February 3, 2023

    1.4K

    相关实验视频

    Last Updated: Aug 4, 2025

    Development of an in vitro model system for studying the interaction of Equus caballus IgE with its high-affinity receptor FcεRI
    07:31

    Development of an in vitro model system for studying the interaction of Equus caballus IgE with its high-affinity receptor FcεRI

    Published on: November 1, 2014

    12.5K
    Analysis of Chromosome Segregation, Histone Acetylation, and Spindle Morphology in Horse Oocytes
    12:11

    Analysis of Chromosome Segregation, Histone Acetylation, and Spindle Morphology in Horse Oocytes

    Published on: May 11, 2017

    11.0K
    High-Resolution Fluoro-Respirometry of Equine Skeletal Muscle
    07:39

    High-Resolution Fluoro-Respirometry of Equine Skeletal Muscle

    Published on: February 3, 2023

    1.4K