Biology Key Word Definitions (T-U)

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What is a territory?
An area where an animal lives and feeds, which it may mark out or defend against other animals.
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What is thalidomide?
A drug that caused deformities in the foetus when given to pregnant women to prevent morning sickness.
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What is the thermoregulatory centre?
The area of the brain which is sensitive to the temperature of the blood.
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What is tissue culture?
Using small groups of cells from a plant to make new plants.
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What is a trachea?
The main tube lined with cartilage rings which carries air from the nose and mouth down towards the lungs.
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What is a transect?
A measured line or area along which ecological measurements (e.g. quadrats) are made.
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What is a transfusion?
The transfer of blood from one person to another.
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What is a transpiration stream?
The movement of water through a plant from the roots to the leaves as a result of the loss of water by evaporation from the surface of the leaves.
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What is a transport system?
A system for transporting substances around a multicellular living organism.
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What is Type 1 diabetes?
Diabetes which is caused when the pancreas cannot make insulin. It usually occurs in children and young adults and can be treated by regular insulin injections.
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What is urea?
The waste product formed by the breakdown of excess amino acids in the liver.
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What is urine?
The liquid produced by the kidneys containing the metabolic waste product urea along with excess water and salts from the body.
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Other cards in this set

Card 2

Front

What is thalidomide?

Back

A drug that caused deformities in the foetus when given to pregnant women to prevent morning sickness.

Card 3

Front

What is the thermoregulatory centre?

Back

Preview of the front of card 3

Card 4

Front

What is tissue culture?

Back

Preview of the front of card 4

Card 5

Front

What is a trachea?

Back

Preview of the front of card 5
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