Examlex
Cepheid variable stars are important because we can use them to determine the distance to any stellar group that contains some of these stars.
Egg Proteins
Proteins found in eggs, serving as a source of nutrition and playing roles in the development of the embryo.
Species Specific
Characteristics or behaviors that are unique to a particular species.
Hybrid Inviability
A postzygotic barrier where offspring resulting from the mating of two different species die prematurely due to genetic incompatibilities.
Alloploid
An organism having two or more sets of chromosomes that are derived from two different species.
Q5: Which of the following layers of the
Q24: If a sunspot appears one-quarter as bright
Q32: A star like the Sun will lose
Q40: "Weather" in the interstellar medium is produced:<br>A)
Q44: How does the energy in light emitted
Q47: In the early 1960s, physicists named Penzias
Q61: What is the escape velocity from
Q62: What is the difference between a Seyfert
Q71: Where have astronomers observed the existence of
Q88: What is the approximate luminosity of