8.5 Science Vocab
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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| tropism | a plant's growth response toward or away from a stimulus.
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| hormone | chemical that affects how the plant grows and develops.
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| auxin | one important plant hormone that speeds up the rate at which a plant's cells grow.
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| photoperiodism | a plant's response to seasonal changes in length of day and night.
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| short-day plants | flower when nights are longer.
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| long-day plants | flower when nights are shorter.
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| critical night length | the number of hours of darkness that determines whether or not a plant will flower.
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| day-neutral plant | flowering cycle is not sensitive to periods of light and dark; ex.- dandelions, rice, tomatoes.
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| dormancy | period when an organism's growth or activity stops.
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| annuals | flowering plants that complete a life cycle within one growing season.
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| biennials | angiosperms that complete their life cycle in two years.
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| perennials | flowering plants that live for more than two years.
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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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