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Lab 24
reproduction of flowering plants
| Question | Answer |
|---|---|
| accessory fruit | composed of tissues other than the flower ovary (apple or pear) |
| aggregate fruit | composed of multiple ovaries from the same flower (raspberry and blackberry) |
| apomixis | reproduction in which fruits and seeds are produced without gamete fusion. |
| asexual reproduction | any reproduction that does not involve gamete fusion |
| bulb | short underground stem with fleshy leaf bases (onion) |
| coevolution | parallel adaptations in two species whose survival depends on one another |
| corm | short, thickened underground stem with thin leaf bases (gladiolus) |
| cross-pollination | pollen is transferred to pistil of a different plant of the same species |
| dioecious | plant capable of producing sperm or eggs but not both |
| imperfect | flower that can produce sperm or eggs but not both |
| meristem | region of cell division |
| monoecious | plant that can produce both sperm and eggs |
| multiple fruit | formed from several ovaries of different flowers (pineapple) |
| perfect | flower that can produce both sperm and eggs |
| rhizome | horizontal underground stem (banana and johnson grass) |
| rootstock | plant that can be used as the root donor in a graft |
| self-pollination | pollen is transferred to pistil on the same plant |
| sexual reproduction | any reproduction in which there is a fusion of genetic material |
| simple fruit | formed from a single ovary |
| stolon | horizontal stem above ground (runners of grasses) |
| sucker | shoot growing from an underground root |
| tuber | underground stem thickened for food storage (potato) |
| vegetative propagation | asexual reproduction of a plant, including cuttings of stems, roots, etc. |
| What is an advantage of apomixis? | an advantage of this asexual reproduction is a higher success rate of reproduction |
| what is an advantage of dioecious plants? | because dioecious plants have male and female flowers on separate plants, cross-pollination is required. This allows more genetic variation |
| what is an advantage of perfect flowers? | the ability to self-pollinate |
| what is an advantage of sexual reproduction? | any reproduction in which there is a fusion of genetic material allows tremendous genetic variation and defense against rapidly changing environments |
| What are three ways of fruit and seed dispersal? | fruits entice animals to eat them and then defecate the seeds in a different location. some fruits and seeds have wings that allow them to drift through the air or spines that attach to the fur of a mammal. |
Created by:
cmccartney2
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