Name______(print)

ID. ______

This is a take home assignment worth 40 points of your final grade

The assignment must be printed out and answers filled in spaces provided, and in pencil or ink. Yes folks, the tests have to be hand-written. The take home tests are due at the final.

Please use only the space provided. In most cases you will not need all the space provided and should not feel compelled to fill it.

I will not grade beyond the space provided. Also please write big enough so I can read your answers. Answers I cannot read will earn a 0. If you have to write in pencil, please make sure your answer is readable. That means the pencil writes dark and you do not write super small.

This assignment should reflect your individual effort.

You are expected to abide by the NCSU Honor code.

Signature______

Again, only handwritten assignments will be graded. Since this is the take home portion of the test, answers will be graded as correct or incorrect, no partial credit will be awarded.

1. Identify or Describe: 24 pts.

a. of the following, which do not molt, chaetognaths, gastrotrichs, or rotifers.

b. A minor clade that uses movable spines on their heads to grasp and hold prey.______

c. Of the following, which are eutelic, acanthocephalans, gastrotrichs or rotifers.

d. Of the following, Chaetognatha, Cycliophora, Gnathostomulida, which clade maps closest to Priapulida. ______

e. One difference between Gnathostomulida and Micrognathozoa.

f. Clade containing species in which,part of the life cycle involves a multinuclear plasmodium that gives rise to sexual adults. ______

g. Where Cycliophora are found.______

h. One characteristic feature of development in the Mesozoa.

i. The cycliophoran life cycle.

j. Clade with neoteny in the life cycle. ______

k. Nematode relative that was well represented among the Burgess Shale fossils. ______

2. 16 pts. Identify the groups diagrammed below, giving identifying characteristics of each. Possible choices, w. Nematomorpha. x. Kinorhyncha, y. Priapulida and z. Loricifera.

I should be able from your descriptions to distinguish among the four groups pictured. You may however use internal anatomy, ecology or behavior if such qualify as distinguishing characteristics. Answers in each box, will be graded as incorrect or correct. No partial credit.

c. Also give one characteristic that is similar to structures or lifestyles of nematodes. You must use a different characteristic for each group. So you cannot put “acoelomate” if that is appropriate in the cells for all four groups. In other words you cannot choose the characteristics for all four groups below. Bilateral symmetry and number of tissue layers are not acceptable traits.

Identifying or distinguishing
Characteristics / Where
found / Similarity to nematodes