[Campbell Biology P.1092] According to Figure 47.1, despite their significant age difference,... | Practice Question

According to Figure 47.1, despite their significant age difference, the human and chick embryos exhibit remarkable similarities. What is the fundamental reason for these shared features in their early development?

  • A: They belong to closely related species, ensuring identical developmental pathways.
  • B: Their similar appearance is coincidental and not indicative of shared biological processes.
  • C: Early stages of embryonic development are conserved among many animals, leading to a basic shared body plan.
  • D: Both embryos develop at the same rate, making their features appear similar.

Explanation

Figure 47.1 states that the similarities between human and chick embryos 'reflect the fact that the early stages of embryonic development are shared among many animals, giving rise to a basic body plan that is later transformed into distinct and specialized forms.' This highlights the conserved nature of early development.