Using the Clues Given Below, Generate a Phylogeny That Shows

question 241

Essay

Using the clues given below, generate a phylogeny that shows the relationships among reptiles, prototherians, marsupials, and eutherians.Label the following characteristics (A-D) on the phylogeny:
A.Ventral pouch
B.Hair and mammary glands
C.Amniote egg
D.Highly developed placenta
Clues:
Prototherians, marsupials, and eutherians have hair and mammary glands.
Marsupials have a ventral pouch and placenta.
Eutherians have a placenta.
Marsupials were once found on all continents but are now restricted to Australasia and the Americas.
Reptiles, prototherians, marsupials, and eutherians are amniotes.
Prototherians lay shelled eggs.
Prototherians are only found in Australia and New Guinea.

---

Definitions:

Convergence

The process by which lines of perspective in a drawing or photograph appear to converge as they recede toward the horizon line, creating the illusion of depth. In a biological context, it refers to the evolution of similar features in species of different lineages.

Shadowing

A technique used in language learning and cognitive psychology where an individual repeats speech immediately after hearing it, focusing on mimicry and comprehension.

Depth Perception

The visual ability to perceive the world in three dimensions and the distance of an object.

Color Perception

The process by which the human brain interprets and distinguishes colors, involving the eyes' photoreceptors and neural pathways to process light of different wavelengths as distinct colors.