alleryStart learning →A group containing an ancestor and all of its descendants forms a clade, also called a:
APolyphyletic group
BParaphyletic group
CAnalogous group
DMonophyletic group
Answer & Solution
Correct answer: D. Monophyletic group
1. Clades are defined by completeness of descent.
2. Organisms sharing amniotic eggs make a single clade.
3. Such a clade is also called a monophyletic group.
4. Leaving out some descendants would break the group's monophyly.
_Source: OpenStax Biology for AP(R) Courses (CC BY 4.0), Ch 20 'Phylogenies and the History of Life', sections 20.1-20.3_
Keep practising Phylogenies and the History of Life
Browse all Phylogenies and the History of Life questions for AP Biology, or explore more Biology topics.
Related questions
Complete the classification ruleTrue or false: phylogenyMatch each phylogeny termHomologous or analogous?Stop on the right rankNaming an organism by genus and species alone works because those two ranks are:On a rooted phylogenetic tree, the three domains diverging from a single point implies theThe comparison of taxonomy to a grocery store's departments is meant to show that taxonomy