Science Quiz p33-49
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36 terms
Terms | Definitions |
|---|---|
 angiosperm | produce covered seeds-- the seeds develop inside the ovary of a flower |
| gymnosperms | produce uncovered seeds, like those that form on pine cone's scales. |
| Botanists have classified flowering plants into | families according to the structure of their flowers and fruits. |
| composite family | one of the largest families of flowering plants. |
| head | a composite flower that is actually many small flowers grouped together |
| disk flowers | closely-packed which forms the head''s center |
| ray flowers | surround the center |
| beautiful bloomers | ray flowers of asters are usually purple but may be pink or white; their disk flowers are yellowish |
| pea family | the third largest angiosperm family, have flowers that resemble the pea blossom |
| legumes | members of this family are called (get the name from their seedpods that split along two sides. |
| rose family | 5 white, pink or rose colored petals that form a cup-shaped |
| buttercup family | have 5 rounded petals or petal-like sepals |
| mints | common plants that often have a pleasant odor caused by oil in their leaves and stems |
| spikes | long flower arrangements with clusters attached directly to the stem. |
| honeysuckle family | most fragrant wildflowers. sweet nectar |
| parsley family | clusters of small flowers |
| umbels | arrangement of flowers that have stems of nearly equal length |
| Most members of the parsley family | have compound umbels. |
| milkweed family | unusual flowers arranged in umbels. |
| dicot | double dipper generally have broad leaves with branching veins, petals in groups of 4 or 5 |
| monocot | single scoop generally have long slender leaves parallel veins |
| lily family | that bloom for only one day before they die and are replaced by another flower |
| bulb | a structure made of layers of thick, fleshy leaves surrounding a very short stem |
| amaryllis family | contains over 800 species, grow in warm areas or as potted plants in colder climates |
| corms | thick vertical, underground stems |
| rhizomes | horizontal stems lying along or just under the ground. |
| inferior | attached below the other flower parts |
| superior | attached above the other flower parts |
| grass | insignificant organism that is taken for granted and largely ignored |
| node | place where the leaf attaches to the stem |
| blade | the broad, flat portion of a leaf |
| sheath | which attaches the culm to the blade and is very important |
| stolon | a creeping stem that grows along the ground |
| racemes | the flowers grow on small stems that branch off the main stem |
| grains | fertilized flowers produce |
| grasses cover | 1/3 of the earth's land area |
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