479367
| Pregunta | Respuesta |
| What are the 5 kingdoms? | Animalia, Plantae, Fungi, Protoctista, Prokaryotes |
| The 5 classes of Vertebrates? | Fish, Mammals, Reptiles, Birds and Amphibians |
| Order of the hierarchical for classification? | Kingdom, Phylum, Class, Order, Family, Genus, Species |
| Two causes of variation? | Genes, Environment |
| Continuous variation is? | vary within range, no distinct categories |
| Discontinuous variation is? | There are distinct categories e.g blood group (A, B, AB, O) |
| -Adaption to high temps Chemosynthesis is? | Bacteria that has adapted to live on Hydrothermal vents, making their own food using chemical energy. |
| -Adaption to cold temps Name an animals that has adapted to live in polar regions? | Polar bears - thick hair, compact body shape, big feet (spreading weight). |
| Define Natural Selection? | when organisms better adapted to their environment and produce offspring. |
| Define Specification? | Specification the the development of a new species |
| Define Specification though isolation? | A Population of a species is separated, this could be due to a physical barrier |
| Define Specification though Conditions? | On either side of the physical barrier that has split the population the climate it different, causing the specie to have different characteristics |
| How many pairs of chromosomes does a human cell contain? | 23 pairs |
| what is an allele? | Different versions of the same gene |
| Define Homozygous? | An organism with two of the same alleles. e.g HH, not Hh |
| Define Heterozygous? | An organism with two different alleles. e.g Hh, not HH |
| Define a recessive characteristic? | an organism with two recessive alleles e.g hh |
| Define a dominant characteristic? | The dominant allele overrules the recessive one, e.g Hh or Hh |
| Define Genotype? | What alleles you have |
| Define Phenotype? | the acctual characteristic |
| Cystic fibrosis and sickle cell anaemia are caused by? | A recessive allele |
| Symptoms of Cystic Fibrosis? | Breathing difficulties, lung infection, malnutrition, fertility problems |
| Symptoms of Sickle cell Anaemia? | Tiredness, painful joints, fever, anaemia |
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