1. Are all of the cells of the hydra the same size and shape ? 2....
1. Are all of the cells of the hydra the same size and shape ?
2. Do all of the cells of the hydra have the same function ?
3. Do all of the cells in your body have identical functions? What are some other types of cells you would find in your body?
4. What kinds of cells does brine shrimp have in its body ?
5. What is the difference between the living samples of Euglena and Paramecium and the fixed and stained samples each ?
6. What is the average size of a Hydra cell?
Homework Answers
Answer 1:
Hydra is a fresh water, multicellular organism that belongs to the Phylum Cnidaria. They can be found in temperate and tropical regions. Hydras have the property to regenerate. They can be in two forms- polyp and medusa. Cells of the hydra are not of the same shape and size.
Answer 2:
No, all cells of the hydra do not have the same function. Some help in contraction and other help in ingestion and digestion.
Answer 3:
No, all the cells in the body do not have identical function. Each cell has a different role to play.
In human body there are 4 types of tissues-
Epithelial tissue: It contains the squamous epithelial cells, columnar epithelial cells and cuboidal epithelial cells.
Connective tissue: They are the cells that link and support other tissues and organs. Bones and blood are the connective tissues.
Muscular tissue: They form the muscles of the body.
Neural tissue: They form the nerve of the body and are composed of special cells called neurons.
Answer 4:
Brine shrimp belong to the phylum Arthropoda. They have cells that help them maintain the osmotic balance of their body.
Answer 5:
Euglena and Paramecium belong to the family of Protists.
|
Living |
Fixed |
Stained |
|
|
Euglena |
|
Only flagellum, nucleus, and vacuole is observed. |
Purple colored |
|
Paramecium |
|
Big contractile vauole.is observed |
Pink colored |
Answer 6:
The average size of a hydra cell is 1.2 inches.
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