Question

There are two major patterns for speciation, anagenesis and cladogenesis. below match the pattern of speciation with the examples of speciation. 1. a group of salamanders begin living in a cave, over time their descendants lose their eyes. (click to select) 2. a group of rodents live in a mixed habitat. over time the grass-living animals change in comparison to the woodland-living animals, so that eventually they no longer interbreed. (click to select) 3. one butterfly species was the progenitor of three other species of butterflies.

Answer 1

Anagenesis corresponds to the example of salamanders losing their eyes in a cave, while cladogenesis corresponds to the examples of rodents changing in a mixed habitat and one butterfly species giving rise to three other species.

Step-by-step explanation:

The first example of speciation, where a group of salamanders lose their eyes over time while living in a cave, corresponds to (a) Anagenesis. This is a form of speciation where one species gradually transforms into a new species. The process occurs within a single lineage.

The second example, with a group of rodents changing in comparison to their woodland-living counterparts and eventually no longer interbreeding, represents (b) Cladogenesis. This is a form of speciation where one species gives rise to multiple new species.

The third example, where one butterfly species is the progenitor of three other species, also corresponds to (b) Cladogenesis.