Question

question 2
classification schemes (how scientists think organisms are related to each other) are permanent and cannot change.
true
false
question 3
1 pts
what is the term for a group of organisms that consist of a common ancestor and all its descendants?
polyphyletic group
paraphyletic group
clade
ancestry

Explanation:

Question 2

Classification schemes (like taxonomic or phylogenetic classifications) change as new scientific evidence (e.g., from DNA analysis, new fossil discoveries) emerges. Scientists update these schemes to reflect a more accurate understanding of organism relationships. So the statement that they are permanent is incorrect.

• A polyphyletic group has organisms from different common ancestors, not a single one.
• A paraphyletic group includes a common ancestor and some but not all descendants.
• A clade is defined as a group with a common ancestor and all its descendants.
• "Ancestry" refers to lineage, not the group definition here.

Answer:

False

Question 3