bio Flashcards
organism that causes disease
pathogen
how is cholera spread
through water
how is malaria spread
animal vectors
evolution is the change of inherited characteristics through
natural selection
what happens to the genes to create natural selection
they mutate
how can stone tools be dated and known how old they are
1) compare with other tools/ fossils that have already been dated
2) from how deep down it was found in the ground
who wrote the book about the theory on evolution
charles darwin
theory of evolution is…
new species evolve over many generations
how can a thinner beak be a result of evolution (on a bird)
1) mutations occurred which may have changed the size of the beak
2) thinner beaks mean they can get into tight places for insects and food
3) those with thinner beaks probably survived better because they had obtained more food
4) note that it takes a long period of time for this to happen
which process removes alcohol from the blood into the liver cells
diffusion
advice for drinking alcohol to reduce the damage done
1) reduce/ do not drink alcohol
2) drink alcohol with meals
where are genes found in cells
in the nucleus
one advantage of asexual reproduction
you don’t have to find a mate/ partner to reproduce with
one advantage of sexual reproduction
it can inherit different alleles which means it will be able to grow in different conditions
how are percentile charts used
to monitor height over time
