Variations and adaptations

?
  • Created by: vezting
  • Created on: 10-04-16 12:50
View mindmap
  • variations and adaptations
    • types of variation
      • variation is the differences that exist between individuals.
      • variation within a species is called intra specific variatrion
      • variation between different species is called interspecific variation
      • continuous variation is when the individuals in a population vary within a range. no distinc catagories
        • continuous variation can be shown by continuous data which is quantitative. numbers.
      • discontinuous variation is when there are two or more distinc catagories. each individual falls unto one of these catagories. no intermediates Eg white fur or black fur.
        • this can be shown by qualitative data, which is words, not numbers
        • this is affected by only inherited genes, environnment has no effect
    • causes of variation
      • individuals within a species can have different alleles.
        • this variation in genotype causes a variation in the phenotype, showing variation
      • differences in the environment can cause variation such as climate or food
      • characteristics can be determined by both environment and inherited genes
    • adaptations
      • alleles that code fro variation get passed on from parent to offspring
      • behavioural adaptations are the way an organism acts to increase chance of survival
      • anatomical adaptations are structural features of the body that ibcrease the chance of survival
      • physiological adaptations are the processes inside of the body that increase the chance of survival
      • being better adapted to an environment means the organisms has features which are going to increase the chance of survival and reproduction

Comments

No comments have yet been made

Similar Biology resources:

See all Biology resources »See all Ecology, ecosystems and environmental biology resources »