Last homework for evolution. Unit test will be this Thursday. Wednesday a lab that you need to have so be here. And throughout the week before the holiday you will finish and present your PowerPoint project on evolution. That's the plan!!!
Question #1: A change in the genetic material that produces varation in a species may be the result of
(A) the struggle for survival
(B) the overproduction of a species
(C) a mutation
(D) competition
Question #2: The fact that a healthy deer can outrun a timber wolf is an example of
(A) mutation
(B) isolation
(C) non-random mating
(D) natural selection
Question #3: The DNA sequences found in two different species are 95% the same. This suggests that these species
(A) are evolving into the same species
(B) contain identical proteins
(C) may have similar evolutionary histories
(D) have the same number of mutations
Question #4: Fossil evidence indicates that many species have existed for relatively brief periods of time and have then become extinct. Which statement best explains the reason for their short existence?
(A) These organisms lacked the energy to produce mutations.
(B) Humans modify plant and animal species through the knowledge of genetics.
(C) These organisms lacked variations having adaptive value.
(D) Within these species, increasing complexity reduced their chances of survival.
Question #5: A scientist discovered that in a large population of E. Coli bacteria, a few were resistant to the antibiotic streptomycin. By adding streptomycin to the population, she soon obained a large population that was resistant to trreptomycin.
Part A: Using one or more complete sentences, explain how this experiment supports the concet of evolution by natural selection.
Part B: Using one or more complete sentences, identify the substance in the bacteria that is both reponsible for their resistance to streptomycin and also allows this resistance to be passed on to all the offspring
Part C: The evolutionary changes described here occurred in a relatively short period of time rather than requiring millions of years. State one reason why it is possible for E. coli to evolve so rapidly.
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