Examlex
The intensity of a wave's pressure corresponds to a sound's pitch.
Pineal Body
Also known as the pineal gland, this small endocrine gland in the vertebrate brain secretes melatonin, regulated by light exposure.
Biological Rhythms
Internal cycles of biological activity within organisms, such as circadian rhythms, which influence sleep, feeding, and other physiological processes.
Genus
Genus is a rank in the biological classification system (taxonomy) that groups together species sharing common characteristics, sitting above species and below family.
Phylum
A hierarchical level in the classification of organisms, grouping together classes of species that have a common plan of structure or organization.
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