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30 Cards in this Set
- Front
- Back
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In the absence of predators, limited resources, or other environmental pressures a population will...
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grow exponentially
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One strategy maintained by certain organisms to ensure the survival of the species is to
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over produce offspring
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Which graphs below is consistent with a species.. absence of predators, limited resources, or other environmental pressures?
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line starts off low then does a parabola all the way up (SMILE SHAPED)
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which species is most likely to survive changing environmental conditions?
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a species that reproduces sexually
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A new chemical was discovered and introduced..Which statement best explains why some of the bacteria survived?
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They had a GENETIC VARIATION that gave them resistance to the chemical
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In members of bird species living on a remote island.. greatest number of beak variations would be found when
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they have a large and varied food supply
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if an ecosystem is changed through a natural diaster, organisms will have the best chance of survival if
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their species exhibits genetic variation
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BIRD PICTURE: 4 birds with weird beaks
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Competition for limited food resources led to selection for DIFFERENT traits
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A certain species has little genetic variation. The rapid extinction of this species would most likely result from the effect of
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environmental change
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Bar graph picture with 4 different bars.
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4 (JUST LIKE THE BARS THERE)
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Which statement best describes a population of organisms if cloning is the only method used to reproduce this population?
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There would be LITTLE chance for variation within the population
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A species that lacks the variation necessary to adapt to a changing environment is more likely to
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become ExTiNcT over time!!
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what property does this description illustrate about living things? (APHIDS) Aphids are horny little fellows so they have sex a lot and OVER PRODUCE a lot because they are so horny all the time
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the capacity to over produce offspring
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which of these best illustrates natural selection?
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An organism with FAVORable genetic variations will tend to survive and breed successfully!!
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natural selection can best be defined as??
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survival of those organisms genetically Adapted to the environment
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charles darwin proposed that organisms produce many offspring..According to Darwin, the offspring that most likely survive are those that
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are best ADAPTED to the environment!!
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which statement best explains why the actual population growth is less than the potential population growth?
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resources in the environment are limited
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6 mini potato pictures
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an ecosystem composed of a FEW STRONG INDIVIDUALS like the potato man!!!
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which statement best illustrates a rapid biological adaptation that has actually occurred?
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Pesticide-resistant insects
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Praying mantis insect drawing (selects da pressure)
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selection pressure
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Pepper moths drawing (dark nigga moths and light cracker moths) with a graph
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The habitat must be dark nigga colored providing protection for the nigga moths that are dark!
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finches (BIRDS PICTURE) 2 main graphs and answer has 3 other graphs
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graph wit 2 dotted lines. The 2nd most normal one
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rabbit picture with 2 rabbit bar graphs
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a decrease in the advantage of having white fur :( poor white rabbits da cracker ones
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photos of nasty June beetles
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variation in traits
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certain bacteria produce chemical that makes them resistant to penicillin MY ANTIBIOTIC
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survive exposure to the penicillin!! :O
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picture of graph spray program for mosquito.. which explains why some mosquitoes survived after the first spraying?
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A natural variation existed within the mosquito population
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which statement best explains the decreased effectiveness of the insecticide?
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mosquitoes resistant to the inscesticide lived and produced offspring happily ever after
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when penicillin was first introduced
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members of the bacteria survived and reproduced!! creating a more resistant population oh nooo
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antibiotic effective in killing 95% picture
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asexual reproduction and more resistant to the antiobiotic
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when antibiotics were first developed.. one possible explanation for this change is that
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the antibiotics killed most of the bacteria that did not have a genetic variation for resistance :'(
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