Special feature that makes an organism particularly well suited to the environment where it lives.
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Adult cell cloning
Process in which the nucleus of an adult cell of one animal is fused with an empty egg from another animal. The embryo which results is placed inside the uterus of a third animal to develop.
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Agar
The nutrient jelly on which many microorganisms are cultured.
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Alkane
Saturated hydrocarbon with the general formula CnH2n+2, for example methane, ethane and propane.
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Alkene
Unsaturated hydrocarbon which contains a carbon-carbon double bond. The general formula is CnH2n, for example ethene C2H4
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Alloy
A mixture of metals (and sometimes non-metals). For example, brass is a mixture of copper and zinc.
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Aluminium
A low density, corrosion-resistant metal used in many alloys, including those used in the aircraft industry.
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Amplitude
The height of a wave crest or a wave trough of a transverse wave from the rest position.
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Angle of incidence
Angle between the incident ray and the normal.
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Angle of reflection
Angle between the reflected ray and the normal.
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Antibiotic
Drug that destroys bacteria inside the body without damaging human cells.
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Asexual reproduction
Reproduction that involves only one individual with no fusing of gametes to produce the offspring. The offspring are identical to the parent.
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Atmosphere
The relatively thin layer of gases that surround planet Earth.
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Atom
The smallest part of an element that can still be recognised as that element.
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Atomic number
The number of protons (which equals the number of electrons) in an atom. It is sometimes called the proton number.
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Auxin
A plant hormone that controls the responses of plants to light (phototropism) and to gravity (gravitropism).
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Other cards in this set
Card 2
Front
Special feature that makes an organism particularly well suited to the environment where it lives.
Back
Adaptation
Card 3
Front
Process in which the nucleus of an adult cell of one animal is fused with an empty egg from another animal. The embryo which results is placed inside the uterus of a third animal to develop.
Back
Card 4
Front
The nutrient jelly on which many microorganisms are cultured.
Back
Card 5
Front
Saturated hydrocarbon with the general formula CnH2n+2, for example methane, ethane and propane.
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