Biology: Growth and Development

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Questions and Answers

What is the process by which a zygote develops into a complex multicellular organism?

  • Evolution
  • Parthenogenesis
  • Natural Selection
  • Development (correct)

What is the starting point for development in most animals?

  • Sperm cell
  • Zygote (correct)
  • Egg cell
  • Adult stage

What is the term for the series of modifications that occur in a species over time?

  • Evolution (correct)
  • Ontogenetic Trajectory
  • Development
  • Natural Selection

What is the term for the series of stages that an animal goes through from zygote to adult?

<p>Ontogenetic Trajectory (C)</p> Signup and view all the answers

What is the term for a type of asexual reproduction in which an offspring is produced from an unfertilized egg cell?

<p>Parthenogenesis (D)</p> Signup and view all the answers

How do evolution and development relate to each other?

<p>They are very closely linked (C)</p> Signup and view all the answers

What is the significance of trajectories in relation to evolution?

<p>They are the result of prior evolution from earlier forms (D)</p> Signup and view all the answers

What is the relationship between evolution and development according to the text?

<p>Evolution begets development, and development begets evolution (C)</p> Signup and view all the answers

What is heterochrony in the context of evolution and development?

<p>A change in the ontogenetic sequence or trajectory (B)</p> Signup and view all the answers

What was the main difference between preformationists and epigeneticists?

<p>Preformationists believed in a pre-formed adult, while epigeneticists believed in a guided developmental process (D)</p> Signup and view all the answers

What determines the kind of animal that the developmental process will build?

<p>The structural genes and their DNA sequences (D)</p> Signup and view all the answers

What are the broadly defined stages of development that are common to most animals?

<p>Zygote, cleavage, gastrulation, organogenesis, and growth (D)</p> Signup and view all the answers

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