B1 Topic 1 - Variation 0.0 / 5 ? BiologyVariation and reproductionGCSEEdexcel Created by: GoCreated on: 05-03-14 21:11 What does classification mean? Grouping things by their features or characteristics. 1 of 23 What are the five kingdoms? Animalia, Plantae, Fungi, Prokaryotae and Protoctista 2 of 23 What are the five classes? Amphibians, Mammals, Reptiles, Birds and Fish 3 of 23 What kingdom is this describing...Multicellular, no cell walls or chloyophyll, heterotrophic feeders. Animalia 4 of 23 What kingdom is this describing...Multicellular, have cell walls and chlorphyll, autotrophic feeders. Plantae 5 of 23 What kingdom is this describing...Multicellular, have cell walls, no chlorophyll, saphrotrophic feeders. Fungi 6 of 23 What kingdom is this describing...unicellular and nucleus in cell. Protoctista 7 of 23 What kingdom is this describing...unicellular and no nucleus in cell. Prokaryotae 8 of 23 What are the different ways you can absorb oxygen? Lungs, gills and skin 9 of 23 What are the two ways you can fertilise? Internally or externally. 10 of 23 What are the to ways you can reproduce Oviparous or vivaporous 11 of 23 How do you regulate internal body temperature? Homeothermally and Poikilothermally. 12 of 23 What does natural selection mean? Survial of the fittest 13 of 23 Define: Evolution A slow gradual change of organisms from one generation the the next. 14 of 23 What does a necleus contain? Chromosomes 15 of 23 How many chromosomes does a nucleus contain? 23 pairs 16 of 23 Define: Gene A short section of DNA - a gene codes for a characteristic, e.g. eye colour. 17 of 23 Define: Alleles Different versions of the same gene. 18 of 23 What does a cell contain? A nucleus 19 of 23 Define: Speciation Where evolution can lead to new species 20 of 23 What are the three steps to speciation? Isolation --> Adaptation --> New Species 21 of 23 What is gamete? Sperm or egg cell 22 of 23 What is a symptom of cystic fibrosis? Breathing difficulties 23 of 23
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