Biology key words

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What is an adaption?
The gradual change of a particular organism over generations to become better suited to its environment.
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What is an addiction?
It is being abnormally dependant on something habit forming.
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What is aerobic respiration?
Respiration using oxygen which releases energy and produces carbon dioxide and water.
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What is alcohol.
Waste product made by yeast follow anaerobic respiration.
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What is an allele?
One of two alternative forms of a particular gene.
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What is alveoli-
Tiny air sacs in the lungs where gas exchange occurs.
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What are amino acids?
Building blocks of proteins.
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What is anaerobic respiration?
Releasing energy from glucose in living cells in the absence of oxygen to produce a small amount of energy very quickly.
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What are antagonistic muscles?
A pair of muscles that work together to create movement when one contracts the other relaxes.
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What are antibiotics?
Medication used to kill bacterial pathogens inside the body
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What is an antibody?
Produced by white blood cells to destroy disease causing micro organisms.
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what is an anticoagulant?
drugs used to prevent blood clotting.
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what is an antiseptic?
a chemical that kills microorganisms but is safe to use on skin.
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what is an artery?
large blood vessel with narrow lumen and thick elastic walls carries the blood away from the lungs)
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what is an arthropod?
an invertebrate animal with an exoskeleton and segmented body and jointed legs.
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what is an asbestosis?
a lung disease causes by inhaling asbestos particles.
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what is an aseptic?
sterile conditions which prevent contamination.
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what is a asexual?
reproduction with no parent offspring are clones.
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what is Asthma?
an illness that stops people breathing properly due to a narrowing of the airways.
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what is an Auxin?
a plant hormone that affects growth and development.
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what is bacteria?
microscopic single celled organism with no nucleus.
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what is a binocular?
a binocular vision uses two eyes to judge distances.
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what is biodiversity?
the variety of living organisms in an ecosystem.
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what is bio-fuel?
a fuel produced by a living organism.
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what is biogas?
a fuel produced from the anaerobic decomposition of organic waste.
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what is biomass?
the mass of matter in a living organism.
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what is blood pressure?
It is the pressure of the blood in the arteries and veins.
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what is Bronchi?
The branches of the trachea ( the windpipe)
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What are Bronchioles?
the small branches of the bronchi.
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what is Budding?
Reproducing asexually by budding of the parent.
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What is a capillary?
A blood vessel that connects arteries to veins where the exchange of materials takes place.
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what is captivity?
being held or confined to a certain space
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what are carbohydrates?
foods that provide energy.
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what are carcinogens?
cancer causing chemicals
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what is the cardiovascular efficiency?
a measure of how well your heart copes with cardiovascular exercise.
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what is a carnivore?
an animal that hunts and eats other animals
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what is a cartilage?
smooth connecting tissue that covers the ends of bones in a joint.
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what is a catalyst?
A substance usedd to speed up a chemical reaction without being chemically altered itself.
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what are characteristics?
Distinguishing features.
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what is a chitin?
material that is used in exoskeletons.
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what is a chlorophyll ?
The green pigment found in most plants responsible for photosynthesis.
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what is cholesterol?
A type of fat that builds up in the arteries.
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what is a chromosome?
a coil of DNA made up of genes found in the nucleus of plants and animal cells.
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what is the circulatory system ?
a stystem of tubes and a pump to move fluids around a body in humans this consists of the heart and the blood vessels.
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what is a clone?
a genetically identical offspring of an organism.
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what is a clot?
a mass or lump of coagulated blood.
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what is a competition?
rivalry/struggle among organisms for food and space ect.
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what is a consumer?
an organism that eats other organisms.
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what is a cytoplasm?
The jelly like substance found n living cells where chemical reactions take place.
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what is data?
information collected form a experiment and investigation.
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what is decay?
rotting and breaking down something.
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what are decomposers?
rganisms that break down dead plants or animals into simpler substances.
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what is a deficiency?
A lack of a substance.
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what is denature?
an irreversibly change the structure of a protein molecule.
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what is deoxygenated?
blood with no or little oxygen.
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what are depressants?
drugs that slow the way the body works eg alcohol.
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what is a detritivore?
an organism that feeds on dead organisms and the waste of living organisms.
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what is a detritus?
waste material formed from dead and decomposing plants and animals.
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what is diabetes?
a disease caused by the faliure to conrtoll blood sugar levels due to the inability of the pancreas to secrete insulin.
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what is differentiation?
a process by which simple cells become specialized to preform a specific function.
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what is diffusion?
The net movement of particles from an area of high concentration to an area of low concentration.
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It is being abnormally dependant on something habit forming.

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