B1.1 Biology - Key Words 0.0 / 5 ? ScienceBiologyGCSEEdexcel Created by: kimmurdoch8Created on: 02-05-16 14:53 Animals Heterotrophs, multicellular, no chlorophyll or cell wall 1 of 24 Plants Autotrophs, multicellular, have chlorophyll and cell wall 2 of 24 Fungi Saprophytes, multicellular, have cell wall but no chlorophyll 3 of 24 Protoctists Unicellular, have nucleus 4 of 24 Prokaryotes Unicellular, no nucleus 5 of 24 Autotrophs Can make their own food e.g. by photosynthesis 6 of 24 Heterotrophs Unable to make their own food 7 of 24 Saprophytes Feed off dead organisms and decaying material 8 of 24 Vertibrates Animals with a spine and internal skeleton 9 of 24 Invertibrates Animals with no spine or internal skeleton 10 of 24 Oviparous Lays eggs 11 of 24 Viviparous Gives birth to live young 12 of 24 Homeotherms Able to control it's own internal body temperature 13 of 24 Poikilotherms It's internal body temperature is controlled by the environment 14 of 24 Binomial system Gives each species a two part name. The first part refers to the genus and the second part refers to the species 15 of 24 Continuous variation No distinct categories e.g. height 16 of 24 Discontinuous variation Distinct categories e.g. blood group 17 of 24 Natural selection Survival of the fittest 18 of 24 Speciation Development of a new species 19 of 24 Allele Different versions of the same gene 20 of 24 Homozygous Two alleles for a particular gene that are the same 21 of 24 Heterozygous Two alleles for a particular gene that are different 22 of 24 Genotype What allele you have 23 of 24 Phenotype The actual characteristic 24 of 24
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