Identify an animal in the grassland ecosystem that shares a large number of ancestral traits with...
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Identify an animal in the grassland ecosystem that shares a large number of ancestral traits with its common ancestor. Justify your choice by describing the ancestral traits shared by the animal species and the common ancestor (1.5 pt).
Homework Answers
One of the animals that lives in grasslands are the hippos.
It has recently discovered that the common ancestor of these semi aquatic- herviborous mammal, belongs to the family of
ANTHRACOTHERES: they lived in Africa 2 to 40 millions ago. They are semi aquatic, herbivorous mammals, classified as artiodactyl ungulate as hippos and with a similar anatomy of lower jaw
Some fossil teeth of this ancestor shares characteristics with the particular structure of hippo´s teeth: thick, high crowned molars wear down in clover shape.
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Answer Question number 4
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Answer Question number 4
Table 4. Matrix of shared derived traits/States of animal phyla Portfera Cnidaria Platy. Mollusca Echino Chor Portfera 0 Cnidaria Platy, Mollusca Arthro. Echino. Chordata 4. Now use Table 4 to construct the shortest tree. If you don't remember how to use the Shared Derived Characters table, look back at your Building Phylogenies packet. Draw out your hypothesized cladogram in the space below (if you want, you can draw it on paper, take a picture, paste/insert the...
Answer question number three.
This information may be useful. These are the questions before. Not
sure if they play a part.
3. Now construct a matrix of shared derived features for the phyla data set in Table 4: Remember that this matrix is based on shared derived traits/States so you need to count the total number of times in which the two phyla share the non-ancestral (derived) States in Table 3 (i.e. they are both coded with a 1 or...
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