Biology glossary
Glossary of biology.
Glossaries
Term | Main definition |
---|---|
spermatophyte |
Glossaries - Biology glossary
seed plant; from the Greek sperm (seed) and phyte (plant) |
Sphenodontia |
Glossaries - Biology glossary
clade of tuataras |
sphere of hydration |
Glossaries - Biology glossary
when a polar water molecule surrounds charged or polar molecules thus keeping them dissolved and in solution |
sphincter |
Glossaries - Biology glossary
band of muscle that controls movement of materials throughout the digestive tract |
spicule |
Glossaries - Biology glossary
structure made of silica or calcium carbonate that provides structural support for sponges |
spinal cord |
Glossaries - Biology glossary
thick fiber bundle that connects the brain with peripheral nerves; transmits sensory and motor information; contains neurons that control motor reflexes |
spinal nerve |
Glossaries - Biology glossary
nerve projecting between skin or muscle and spinal cord |
spiral cleavage |
Glossaries - Biology glossary
|
spirometry |
Glossaries - Biology glossary
method to measure lung volumes and to diagnose lung diseases |
splicing |
Glossaries - Biology glossary
|
spongocoel |
Glossaries - Biology glossary
central cavity within the body of some sponges |
spongy bone tissue |
Glossaries - Biology glossary
forms the inner layer of all bones |
spontaneous mutation |
Glossaries - Biology glossary
mutation that takes place in the cells as a result of chemical reactions taking place naturally without exposure to any external agent |
sporangium |
Glossaries - Biology glossary
reproductive sac that contains spores |
spore |
Glossaries - Biology glossary
haploid cell that can produce a haploid multicellular organism or can fuse with another spore to form a diploid cell |