an ecogeographic principle that states that within a broadly distributed taxonomic clade, populations and species of larger size are found in colder environments, and species of smaller size are found in warmer regions
Fructose causes seven times as much cell damage as does glucose, because it binds to cellular proteins seven times faster; and it releases 100 times the number of oxygen radicals (such as hydrogen peroxide, which kills everything in sight).
brain cells shrink during sleep to open up the gaps between neurons and allow fluid to wash the brain clean.
Humans sense gravity and acceleration using otoliths, calcium crystals in the inner ear (similar to those jellyfish have) which move sensitive hair cells to tell the brain which way gravity is pulling.
a congenital defect in which the heart is situated on the right side of the body
in the order Hyracoidea. they look more like small rodents though.
shell structure in which the load is carried in more or less continuous panels (think exoskeleton)
The endothelium is the thin layer of cells that lines the interior surface of blood vessels and lymphatic vessels
They found that when these plants are attacked by tobacco hornworm caterpillars, Manduca sexta, the caterpillars’ saliva causes a chemical change in the GLV compounds the plants had produced. These modified compounds then attract predatory “true bugs,” Geocoris, which prey on hornworm eggs and young larvae.
Histatins are proteins found in saliva. They are antimicrobial and antifungal proteins, and have been found to play a role in wound-closure
Secondary metabolites are organic compounds that are not directly involved in the normal growth, development, or reproduction of an organism. Unlike primary metabolites, absence of secondary metabolites does not result in immediate death, but rather in long-term impairment of the organism’s survivability, fecundity, or aesthetics, or perhaps in no significant change at all.
Flavonoids (or bioflavonoids) (from the Latin word flavus meaning yellow, their colour in nature), are a class of plant secondary metabolites.
Has nothing to do with flavor.
The central dogma of molecular biology deals with the detailed residue-by-residue transfer of sequential information. It states that such information cannot be transferred back from protein to either protein or nucleic acid.
DNA makes RNA makes proteins and never the other way around.
ribosome is the “factory” that takes amino acids and builds them up into proteins
females flies lose their interest in sex for a time because of the influence of a substance known as sex peptide, which males inject along with sperm at the culmination of the encounter. This causes them to reject the advances of the male flies.