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33 Cards in this Set

  • Front
  • Back
How is a population graph set up?
*y axis-animal
*x axis- years
Invasive species create many problems, what is an example?
*they are competing for resources.
What effects the invasive species in a new enviroment?
*food that is available
*number of predators
*territory available
What does expotential growth look like on a graph?
* J curve
Carrying capacity
*The population size an environment can sustain
Primary succession
*occurs on a new island from volcanic rock
Global warming has increased due to?
*CO2 concentration
What are some of the human activities directly responsible for the increase of atmospheric carbon dioxide?
*automobiles
*power plants
*clearing natural areas and forests.
Greenhouse effect is lined to?
global warming
The growth rate of a population would decrease due to?
* a decrease in nutrients available in an ecosystem.
Nucleotide
*monomer of DNA
Replication
*cell must replicate before it can divide
Proteins
*the instructions for DNA cells
DNA
*Deoxyribose Nucleic Acid
*contains hereditary information
Some animals can not interbreed, what is the reason?
*They have their own specific DNA
Why is DNA used to solve crimes?
*individuals have their own unique DNA, therefore can be used to identify a criminal
Mutations
*an error in the proofreading process of DNA replication
What is responsible for genetic mutations?
*tobacco
*UV radiation
*some viruses
Mutations in DNA of lung cells which cause lung cancer are caused by what
long term exposure to smoke or tobacco
A phenotype change is a result of what?
mutations that occur in non coding sections of DNA
cytoplasm will be divided in half during what?
cell division
what causes Downs Syndrom?
an extra chromosome
how can Downs Syndrom be detected?
by performing a karyotype of any of the individual cells
an individual's karyotype can be done using any of what cells?
skin, brain, kidney
cancer is described as what?
the loss of control of cellular division
is lack of sleep a cause of cancer?
No
can genetic mutations be passed to offspring?
yes
what type of mutation for PKU must occur to be passed on to offspring?
gametes
Asexual reproduction
*bacteria produce offspring that are genetic clones
*produces a genetically varied population.
genetic engineering
*allows the bacteria to produce human proteins.
Darwin's theory of natural selection
*the individuals that tend to survive are that that have the variations best suited to the environment
fossil records
*older species gave rise to more recent species
geographic isolation
*seperation of 2 populations