Karl Ernst von Baer proposed that the most conserved stages of development among vertebrates are the ________ stages.
A) earliest
B) latest
C) beginning and end
D) middle

Question

Quizplus · Accepted Answer

Karl Ernst von Baer proposed the biogenetic law, which states that the most conserved stages of development among vertebrates are the earliest stages. According to this law, embryos of different species resemble each other more closely in the early stages of development and diverge more as development progresses.

Karl Ernst Von Baer Proposed That the Most Conserved Stages