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proposed the heirarchical model of coding, suggesting that these lines become increasingly complex, until eventually you recognize complex stimuli

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Achondroplastic dwarfism is a dominant genetic trait that causes severe malformation of the skeleton. Homozygotes for this condition are spontaneously aborted (hence, the homozygous condition is lethal) but heterozygotes will develop to be dwarfed.Matthew has a family history of the condition, although he does not express the trait. Jane is an achondroplastic dwarf. Matthew and Jane are planning a family of several children and want to know the chances of producing a child with achondroplastic dwarfism.The genotypes of Matthew and Jane are best represented asAMatthew JaneAA AaBMatthew JaneAa aaCMatthew Janeaa aaDMatthew Janeaa AaEMatthew JaneAa Aa

In an experiment, 100 mice were released into a field to which no other mice had access. Immediately after their release, a representative sample of mice was captured, their fur color was recorded, and they were returned to the field. After twenty years, a representative sample of mice was captured and the distribution of fur color was again recorded.Which of the following could best explain the change in fur color distribution, as shown in the table above?

Which of the following is probably the best explanation for the fact that Antarctic penguins cannot fly, although there is evidence that millions of years ago their ancestors could do so?APenguins live on land and feed in the water; therefore they have no need to fly.BThe Antarctic home of penguins is flat and barren; therefore there is no place to fly.CAncestral penguins without large wings were better able to swim and feed in the water; therefore they passed their genes for shorter wing structure on to their offspring.DAncestral penguins did not use their wings for long periods of time; therefore today’s penguins have only tiny, nonfunctional wings.EThe cold and wind of Antarctica make flight impossible; therefore penguins that live there have lost the ability to fly.

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