Kingdom Animalia
Questions:
1) There is a big difference between the Elodea plant cell and the Human Cheek cell. As you can see below, the Elodea cell has a very precise cell structure, whereas the Human Cheek cell is folded over and there is no specific pattern visible. The Elodea also has a cell wall because it is a plant whereas the Human Cheek cell does not because it is part of an animal. The size is generally the same and they both have a nucleus and a cell membrane and cytoplasm.
2) There are many differences between animal cells and plant cells. One being that plant cells have chloroplast while most animal cells do not. This is because plant and animal cells get nutrients and energy using different methods of survival. Also, during osmosis each cell behaves a different way. A plant cell can effectively become turgid because it has a cell wall preventing it from bursting, while an animal cell would be put in harms way when it becomes turgid.
1) There is a big difference between the Elodea plant cell and the Human Cheek cell. As you can see below, the Elodea cell has a very precise cell structure, whereas the Human Cheek cell is folded over and there is no specific pattern visible. The Elodea also has a cell wall because it is a plant whereas the Human Cheek cell does not because it is part of an animal. The size is generally the same and they both have a nucleus and a cell membrane and cytoplasm.
2) There are many differences between animal cells and plant cells. One being that plant cells have chloroplast while most animal cells do not. This is because plant and animal cells get nutrients and energy using different methods of survival. Also, during osmosis each cell behaves a different way. A plant cell can effectively become turgid because it has a cell wall preventing it from bursting, while an animal cell would be put in harms way when it becomes turgid.
3) Phyla can be classified even farther. For example, the Chordata phylum can be broken down into seven other classes. They include agnatha, chondrichthyes, osteichthyes, amphibian, reptilia, aves, mammalia. For a scientist to easily classify each organism into its class, they use a dichotomous key. This is a series of yes or no questions that go hand in hand until the correct class is found for each organism. Here is an example:
Start HERE:
1) Does it live in the water?
No: Go to question 2.
Yes: Go to question 5.
2) Does it have a jaw?
No: The organism is classified as Agnatha.
Yes: Go to question 3.
3) Is the organism made of cartilage?
No: Go to question 4.
Yes: The organism is classified as Chondrichthyes.
4) Is the organism (that lives in water) made of bones?
No: Go to question 1.
Yes: The organism is classified as Osteichthyes.
5) Was the organism the first land vertebrate?
No: Go to question 6.
Yes: The organism is classified as amphibian.
6) Is the organism dry to the touch and have scale like features?
No: Go to question 7.
Yes: The organism is classified as reptilian.
7) Is the organism a bird?
No: Go to question 8.
Yes: The organism is classified as aves.
8) Does the organism have characteristics like having hair, glands, and the ability to bear their own offspring?
No: Go to question 1.
Yes: The organism is classified as mammalia.
Start HERE:
1) Does it live in the water?
No: Go to question 2.
Yes: Go to question 5.
2) Does it have a jaw?
No: The organism is classified as Agnatha.
Yes: Go to question 3.
3) Is the organism made of cartilage?
No: Go to question 4.
Yes: The organism is classified as Chondrichthyes.
4) Is the organism (that lives in water) made of bones?
No: Go to question 1.
Yes: The organism is classified as Osteichthyes.
5) Was the organism the first land vertebrate?
No: Go to question 6.
Yes: The organism is classified as amphibian.
6) Is the organism dry to the touch and have scale like features?
No: Go to question 7.
Yes: The organism is classified as reptilian.
7) Is the organism a bird?
No: Go to question 8.
Yes: The organism is classified as aves.
8) Does the organism have characteristics like having hair, glands, and the ability to bear their own offspring?
No: Go to question 1.
Yes: The organism is classified as mammalia.
Now classify the following organisms using the key. *Answers below each picture.
Here are examples of organisms and cells that can be found in the Animalia Kingdom:
Microscopic Specimens:
Human Lung Cells
Starfish Egg
Human Cheek Cell
Planaria Cell
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Macroscopic Specimens:
Porifera: Leucosolenia
Cnidaria: Fan Coral
Platyhelmenthes: Flatworm
Nematoda: Roundworm
Annelida: Earthworm
Mollusca: Quahog
Arthropoda: Lubber Grasshopper
Echinodermata: Sea Urchin
Chordata: Sparrow
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