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