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.

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Definitions:

Price of Leather Jackets

The monetary value at which leather jackets are offered for sale in the market.

Demand

The amount of a product or service that buyers are prepared and capable of buying at different price levels over a specified time frame.

Inverse Demand Function

A formula that represents the maximum price consumers are willing to pay for a given quantity of a good, illustrating how price is affected by changes in demand levels.

Engel Curve

A graph that shows the relationship between a consumer's income and the quantity of a good purchased, illustrating how spending varies with income.