BIO Chapter 3
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| Protoplasmic | single celled organism (archeans, bacteria, protists)
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| Asymmetry | No way to cut body exactly in half
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| Spherical | any plane passing through the exact center of the body will cut it in half
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| Radial | Bowl or vased shape organisms (cnidarians, sponges)
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| Protostome | mouth forms first
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| Coelom | place in the animal where the organs are found
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| Protostome division | spiral cleavage, new cells are smaller added towards inside of embryo
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| Deuterostome | radial cleavage, new cells are formed evenly sized added externally
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| Mosaic | Early specialization of cells, embryo is broken apart incomplete defective embryos form
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| Relative | Late specialization of cells, embryo is broken apart each continues normal development
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| Protostome Types | Lophotrochozoans, ecdysozoans
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| Sponges are | Metazoans, lack symmetry, most lack true tissues
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| Asconoid | simplest, smallest, least efficient
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| Syconoid | intermediate in size and efficiency, fold in body makes space for chanocytes
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| Leuconoid | biggest, most efficient. no central cavity, chambers of chanocytes through body, multiple opportunities to obtain food
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Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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