#Question id: 8936
#Unit 9. Diversity of Life Forms
#Question id: 4710
#Unit 11. Evolution and Behavior
The horizontal axis of the cladogram depicted below is a timeline that extends from 100,000 years ago to the present; the vertical axis represents nothing in particular. The labeled branch points on the tree (V-Z) represent various common ancestors. Let's say that only since 50,000 years ago has there been enough variation between the lineages depicted here to separate them into distinct species, and only the tips of the lineages on this tree represent distinct species.
Which pair of scientists below would probably have agreed with the process that is depicted by this tree?
#Question id: 24623
#Unit 2. Cellular Organization
#Question id: 28269
#Unit 5. Developmental Biology
Sperm-specific calcium channels are encoded by which gene?
#Question id: 28270
#Unit 5. Developmental Biology