Question

which of these is the best description of \descent with modification\?
a structure that is the same in all organisms just with small differences in its purpose
a type of process that causes organisms to get larger and larger over time
the way organisms descend from a common ancestor just with slight modifications

Explanation:

"Descent with modification" is a key concept in evolutionary biology. It refers to the idea that organisms share a common ancestor but have evolved and changed (modified) over time. The first option describes homologous structures rather than the overall concept of descent with modification. The second option about organisms getting larger is too narrow and not the core of the concept. The third option correctly captures the essence of organisms descending from a common ancestor with slight modifications.

Answer:

the way organisms descend from a common ancestor just with slight modifications