BiologyUnit5 IP

09 Jun BiologyUnit5 IP

Question
Individual Project

PART 1:

Here are the common names for each animal gain, since the worms can be tricky to discern:

1. Jellyfish

2. Snail

3. Earthworm

4. Butterfly

5. Sea Sponge

6. Sea Star (Starfish)

7. Parrot

8. Flatworm

9. Roundworm

Please use the diagrams next to each picture to help you discern specific features. I focused on the important feature for each organism to help you navigate the key.

Use Figure 9-1 to match the animal to the correct phylum (Find it in your eBook on page 175).
Come to chat, review the archive or see my notes U5 IP Like Driving Directions in the Instructor files to help you navigate the dichotomous key and complete the Part 1 table.

PART 2:

Part 2: Be sure to answer all of the questions.Your answers to the questions can be brief — even just two or three words for Q1, 2, 3 and 4, a few sentences for Q5 and three DESCRIPTIONS for Q6. I have added a table that compares the features of all the animal phyla to the Instructor Files, and you will see it on the Assignment List. Use zoom (control + +) to view the small font.

Question 1 –find the 2 Phyla that lack organs and include their symmetry.Read through the information on the different phyla of animals. Pay special note to the germ layers , or layers of tissues. You will find on page 176 that flatworms are more complex than two other Phyla because they have three germ layers. You can then infer then that without three layers of tissues, those phyla will not have organs.

Question 2 –be sure to include ALL the phyla with cephalization.See Cephalization, page 173. Use the diagrams from the assignment to determine the location of sensory organs.

Question 3 –find 2 phyla that do not have 3 germ layers.See question 1.

Question 4 –76% of all animals fit into this Phylum. Page 178.

Question 5 –Please relate a progression from the simplest, most primitive fish to the skeletons of the more modern fish. Page 179.

Question 6 –see page 182 for a discussion of the three types of mammals.

Unit 5 Discussion Board

For the DB, you will find an example on the assignment page and discussion board.As always you are required to add at least two comments to other students. These responses MUST include a comparison of two plants — your choice of plant and the student’s you are replying to, or any combination of two plants posted.You can compare unusual features, growth habits, or growing conditions, similarities or differences. Try to stay focused on plant anatomy and function as that is the point of this DB.

If you need some help finding an unusual plant, visit this site:

http://generalhorticulture.tamu.edu/youthadventureprogram/weirdplants/weirdplants.html(Please do not use Resurrection Fern as it is NOT an angiosperm.)

Another easy way to look up some unusual plants is to type “unusual plants” in awww.google.comorwww.bing.comsearch. You can also try terms like “rootless” or “stemless”.

Here are a few fun examples you might consider researching:

Rafflesia

Lithops

Purple Passion

Peanut (yes they are strange!)

Any carnivorous plant — venus flytrap, pitcher plant, sundew

Bromeliads

Duckweed

Wolffia

Any cactus — though be specific

Any plant that grows from a bulb or tuber — like iris or potato

I will also have a presentation of unusual plant structures as an archived live session.

One thing I do not want to see on the DB is a description of how best to grow the plant as a houseplant or in your garden, or its light or nutritional needs in the wild UNLESS it applies directly to the adaptive feature you are describing.

When you use a dichotomous key to identify an animal, it is very similar to getting directions when driving to some destination.

Key = Possible directions

Couplet statements = choices for turns such as left or right

Classification of animal = goal or destination

Think of the key as a set of directions for getting somewhere from your house. You will always start at your house (couplet #1). When you leave the house for your destination you have to make a choice which way to go — right or left, for example. Your choice will depend on where you want to go. So look at the two statements and see if one of them fits your goal. At my house if I want to go to school, I take a left. If I need to go to the grocery store, I take a right. So when you look at the key your goal is the identification of the animal. For each animal the “directions” to get to its identification will be different. In order to deveop the correct list of directions, you need to make some determination about the animal at each couplet. You do this by selecting the correct statement.

So you start at couplet 1. Read the two statements. Choose the one that fits your animal. I will tell you right off that there is only one animal that has irregular symmetry. ALL of the others are either bilaterally or radially symmetric. So for 8 of the 9 animals when you read the statements at couplet 1, you will choose 1b. At the end of the statement there is a number. This is telling you which way to turn next. Just like driving directions, you might tell someone the way to the store — you might say, “When you get to the stop sign, turn left to go to the store.” The key is telling you, if your animal has symmetry, then you need to go read the statements in Couplet #2. When you make a choice for each couplet, it is like coming to that next fork in the road. Read the statements and make your choice, and get the next direction. If you chose 1b, you will come to a number 2. So you will go to couplet #2 and see those statements and choose again. Sometimes your choice will lead you to the very next couplet. If you choose 2a, it sends you to couplet #3. If you choose 2b though, it will send you to couplet #6. You skip all the ones in between 2 and 6, those will not give you the right directions.

You can even think of this instead of left or right as highway directions. Take Rt 1 to Rt 2. If you need bilateral symmetry get onto Rt 6. See what I mean?

I hope this does not seem too silly. I have been working on a good analogy for using the key for a long time, and haven’t found one that I really like yet — though this one seems pretty good. If this does help let me know and I will continue to hone it 🙂