Glossary of terms used on this site
Glossary of biology.
Glossaries
Term | Main definition |
---|---|
genus |
Glossaries - Biology glossary
division of family in the taxonomic classification system; the first part of the binomial scientific name |
geographical variation |
Glossaries - Biology glossary
differences in the phenotypic variation between populations that are separated geographically |
geometric isomer |
Glossaries - Biology glossary
isomer with similar bonding patterns differing in the placement of atoms alongside a double covalent bond |
germ cells |
Glossaries - Biology glossary
specialized cell line that produces gametes, such as eggs or sperm |
germ layer |
Glossaries - Biology glossary
collection of cells formed during embryogenesis that will give rise to future body tissues, more pronounced in vertebrate embryogenesis |
gestation |
Glossaries - Biology glossary
length of time for fetal development to birth |
gibberellin (GA) |
Glossaries - Biology glossary
|
gigantism |
Glossaries - Biology glossary
condition caused by overproduction of GH in children |
gill circulation |
Glossaries - Biology glossary
circulatory system that is specific to animals with gills for gas exchange; the blood flows through the gills for oxygenation |
ginkgophyte |
Glossaries - Biology glossary
gymnosperm with one extant species, the Ginkgo biloba: a tree with fan-shaped leaves |
gizzard |
Glossaries - Biology glossary
muscular organ that grinds food |
glabrous |
Glossaries - Biology glossary
describes the non-hairy skin found on palms and fingers, soles of feet, and lips of humans and other primates |
glia |
Glossaries - Biology glossary
(also, glial cells) cells that provide support functions for neurons |
gliding movement |
Glossaries - Biology glossary
when relatively flat bone surfaces move past each other |
global climate change |
Glossaries - Biology glossary
altered global weather patterns, including a worldwide increase in temperature, due largely to rising levels of atmospheric carbon dioxide |