Bio: Glossary terms A
Terms
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- autonomic nervous system
- regylates involuntary muscles
- artery
- carries blood away from heart
- autosome
- non sex chromosome
- allele
- one of two or more types of genes representing a particular trait
- analagous
- structures that have similar function but different evolutionary origins
- axon
- nerve fiber
- adenosine phosphate
- ADP, and ATP an energy storage molecule
- absorption
- the process by which water and dissolved substances pass through a membrane
- adaptive radiation
- the production of a number of different species from a single ancestral species
- adenine
- purine base that pairs with thymine in DNA and uracil and RNA
- androgen
- male sex hormone
- adipose
- fatty tissue
- adrenaline
- epinephrine, emergency hormone stimulated by anger or fear
- ATPase
- enzyme that catalyzes hydrolysis of ATP to ADP, releases energy
- alternation of generations
- plant life cycle consists of a sporophyte generation and a gametophyte generation
- aerobic
- requiring free oxygen from the atmosphere for normal activity and respiration
- abiotic
- nonliving
- autosomal genes
- non sex linked
- antibody
- globular proteins produced by tissues that destroy or inactivate angitgens
- angiosperm
- flowering plant
- anaerobe
- does not need oxygen to live
- acoelomates
- an animal that lacks a coelom, exhibits bilateral symmetry, and has on internal space that is the digestive cavity
- antigen
- poreign protein that stimulates production of antibodies when introduced into the body
- adaptation
- a behavioral or biological change that enables an organism to adjust to its environment
- active immunity
- protective immunity to a disease in which the individual produces antibodies as a result of previous exposure to the antigen
- agonistic response
- response of aggression or submission between two organisms
- aerobe
- can only live in the presence of oxygen
- action potential
- change in electrical potential across a nerve or muscle cell when stimulated as in a nerve impulse
- allopatric speciation
- evolution of species taht occures in separate geographic areas
- adventitious roots
- develop in an unusual place
- appendage
- extends from trunk and is capable of active movements