Examlex
Studies of female platyfishes, whose male counterparts have a variety of tail shapes, show that the females prefer male fish with artificial swordlike structures attached to their tails.This observation is most consistent with the
Energy Difference
Refers to the change in energy between the reactants and products in a chemical reaction, or between different states of a molecule.
External Magnetic Field
A magnetic field that originates outside an object or system and interacts with it, playing a critical role in various physical phenomena and applications.
Chemical Shift
In nuclear magnetic resonance (NMR) spectroscopy, chemical shift is the relative change in the frequency of nuclear magnetic resonance of a nucleus compared to a reference standard.
Aromatic Protons
Hydrogen atoms attached to the carbon atoms of an aromatic ring, characterized by distinct NMR signals.
Q11: Refer to the figure. <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB5650/.jpg" alt="Refer
Q25: Consider a hypothetical enzyme-coding gene and sequences
Q73: A group of homologous genes with related
Q95: Two species of crickets have partially overlapping
Q141: Refer to the figure showing a phylogenetic
Q147: Two species of crickets have partially overlapping
Q163: The biological species concept is best suited
Q185: Several distantly related clades of a family
Q230: A sequence of DNA that arose from
Q239: Which is usually the easiest to examine