Biology variation and whatever Flashcards
What is variation?
differences in the characteristics of individuals in a population
what is interspecific variation?
variation between species
what is intraspecific variation?
variation between species
what processes can lead to genetic variation?
meiosis
sexual reproduction
mutations
what variation is caused by our genes?
blood group
eye colour
natural hair colour
shape of earlobe
what variation is caused by the environment?
scars
tattoos
language
hair colour/length
what variation is caused by a combination of our environment and our genes?
mass
sporting achievements
height
skin colour
What is evolution?
A change in the inherited characteristics of a poppulation over time through a process of natural selection