Examlex
Stars join the main-sequence group when they begin hydrogen fusion in their cores.They leave the main-sequence group and become giant stars when their core hydrogen is depleted.
Heredity
The passing on of physical or mental characteristics genetically from one generation to another.
Growth Patterns
The specific ways in which an organism grows and develops, often referring to the observable trends or characteristics during its lifecycle.
Family Health History
A record of health information about a person and their close relatives, used to identify patterns of diseases and risk factors in the family.
Development
The process of growth, progress, or evolution of something, often referring to economic, social, or biological aspects.
Q17: The end of the life of a
Q25: At an age of 380,000 years,the temperature
Q29: Which of the following materials is most
Q47: What are the four fundamental forces of
Q57: The Eddington limit is the maximum diameter
Q74: The Sun's absolute magnitude is about +5.The
Q82: A nova is a sudden brightening of
Q84: The phase of the Moon at the
Q98: Jocelyn Bell,a young graduate student at Cambridge
Q119: It can take hundreds of billions of