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There's a question in destroyer that asks for the meaning of this phrase. However, the way the answers are worded are really confusing.
I'm pretty sure I know what the phrase means - basically that whatever embryological developments one organism goes through, the entire lineage goes through as well right? The example in shaum's is confusing as well - they say that gill slits are present in all mammals during development which basically implies that all mammals will go through a "fish" stage at some point. Can someone clarify this and/or give another example displaying this phrase!
I'm pretty sure I know what the phrase means - basically that whatever embryological developments one organism goes through, the entire lineage goes through as well right? The example in shaum's is confusing as well - they say that gill slits are present in all mammals during development which basically implies that all mammals will go through a "fish" stage at some point. Can someone clarify this and/or give another example displaying this phrase!