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vocabstack
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| Question | Answer |
|---|---|
| Noun A pattern of reproduction occurring in the life cycles of many lower plants and some invertebrates, in which the generations are... | 1. alternation of generations |
| the dry fruit of a conifer, typically tapering to a rounded end and formed of a tight array of overlapping scales on a central axis that separate to release the seeds | 2. cone |
| an embryonic leaf in seed-bearing plants, one or more of which are the first leaves to appear from a germinating seed. | 3. cotyledon |
| the outer layer of living tissue, in particular: | 4. cuticle |
| (of a tree or shrub) shedding its leaves annually. Often contrasted with evergreen. | 5. deciduous |
| the young, curled, edible frond of certain ferns. | 6. fiddlehead |
| the leaf or leaflike part of a palm, fern, or similar plant: | 7. frond |
| cycle of plants with alternating generations) the gamete-producing and usually haploid phase, producing the zygote from which the sporophyte arises. | 8. gametophyte |
| begin to grow and put out shoots after a period of dormancy. | 9. germinate |
| The netlike pattern of branching of veins on a leaf blade. Also known as reticulate venation; characteristic of most dicot leaves. | 10. net venation |
| a female reproductive organ in which ova or eggs are produced, present in humans and other vertebrates as a pair. | 11. ovary |
| Arrangement of leaf vascular bundles in parallel along the long axis of a leaf; characteristic of monocot flowering plants | 12. parallel venation |
| the vascular tissue in plants that conducts sugars and other metabolic products downward from the leaves. | 13. phloem |
| a continuously growing horizontal underground stem that puts out lateral shoots and adventitious roots at intervals. | 14. rhizome |
| a flowering plant's unit of reproduction, capable of developing into another such plant. | 15. seed |
| a young plant, esp. one raised from seed and not from a cutting. | 16. seedling |
| a minute, typically one-celled, reproductive unit capable of giving rise to a new individual without sexual fusion, characteristic of lower plants, fungi, and protozoans. | 17. spore |
| the asexual and usually diploid phase, producing spores from which the gametophyte arises. It is the dominant form in vascular plants, e.g., the frond of a fern. | 18. sporophyte |
| any of the tubes forming part of the blood circulation system of the body, carrying in most cases oxygen-depleted blood toward the heart. | 19. vein |
| the vascular tissue in plants that conducts water and dissolved nutrients upward from the root and also helps to form the woody element in the stem. | 20. xylem |
| the male sex organ of algae, mosses, ferns, fungi, and other nonflowering plants. | 21. antheridium |
| the female sex organ in mosses, liverworts, ferns, and most conifers. | 22. archegonium |
| having normal physical functions suspended or slowed down for a period of time; in or as if in a deep sleep: | 23. dormancy |
| the larger of the two kinds of spores produced by some fern | 24. megaspore |
| the smaller of the two kinds of spore produced by some ferns | 25. microspore |
| a sugary fluid secreted by plants, esp. within flowers to encourage pollination by insects and other animals. It is collected by bees to make into honey. | 26. nectar |
| convey pollen to or deposit pollen on (a stigma, ovule, flower, or plant) and so allow fertilization. | 27. pollination |
| A cluster of spore-producing receptacles on the underside of a fern frond | 28. sorus |
| a receptacle in which asexual spores are formed. | 29. sporangium |
| Vegetative reproduction (vegetative propagation, vegetative multiplication, vegetative cloning) is a form of asexual reproduction | 30. vegetative reproduction |