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4 Written questions

3 Multiple choice questions

  1. they showed that organic molecules such as amino acids could be produced from inorganic molecules
  2. wolf
  3. allows us to indirectly date fossils up to billions of years old based on minerals in surrounding volcanic strata

3 True/False questions

  1. Earth probably formed _____ years ago, and the first life evolved as early as _____ years ago.
    .
    4.5 billion years ago ... 3.9 billion years ago
    Humans observed neither event, so there is no way to tell.
    6,000 years ago ... 6,000 years ago
    3.9 million years ago ... 2.0 billion years ago
    10 billion years ago ... 4.5 billion years ago
    they provide positional information in the embryo

          

  2. Hox genes are thought to play an important role in the development of different morphologies because _____.

    they affect the timing of reproductive development in the organism
    they paved the way for the development of multicellular organisms
    they affect the order of genes on certain chromosomes
    they affect the timing of development in the embryo
    they provide positional information in the embryo
    the homolog has evolved more slowly in mice.

          

  3. Which of these are homologous structures?

    There are no homologous plant structures.
    Ivy leaf and pine needle
    Plant root and plant leaf
    Ivy leaf and pine needle