B1 topic 1 - revision

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Characteristic
Features of the organism
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Classification
Sorting out all organims into groups according to thier characteristics
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Variation
A change in the characteristic in alleles
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Speciation
Fromation of new species, such as when populations of a species are seperated geographically and evolve until they are no longer capable of interbreeding
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Evolution
The development of a species over time because of natural selection
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recessive allele
Version of allele that will only take effect if another recessive present aswell
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dominant allele
Version of allele that will always have and effect
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Heterozygous
they have a dominant allele and a ressesive allele
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Homozygous
If both alleles for a charactistic are the sam, the organism is homozygous for that characteristic
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Hetroptrophic
Eats other organims (tissues)
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Autotrophic
Makes its own energy (photosynthisis)
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Saprophyte
Digests out side body
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Multicellular
Lots of cells
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Unicellular
Single celled
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Cell wall
Structure and protection
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Nucleus
Contains DNA, controls cellular activities
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Chordata
A supporting rod running down the length of the body. Note: doesn't have to be bone!
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Other cards in this set

Card 2

Front

Sorting out all organims into groups according to thier characteristics

Back

Classification

Card 3

Front

A change in the characteristic in alleles

Back

Preview of the back of card 3

Card 4

Front

Fromation of new species, such as when populations of a species are seperated geographically and evolve until they are no longer capable of interbreeding

Back

Preview of the back of card 4

Card 5

Front

The development of a species over time because of natural selection

Back

Preview of the back of card 5
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Comments

Jonathan Le Hunte

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The spelling of key words leaves much to be desired, as it could lead to mistakes in key exams. I emplore you to correct these awful errors to give your work some credibility.

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