| 词汇 | heteromorphic |
| 释义 | BETA Examples of heteromorphicheteromorphic isn’t in the Cambridge Dictionary yet. You can help! Some studies on heterophylly have proposed possible mechanisms to explain the ontogeny of heteromorphic seeds. Most heterostylous species possess a heteromorphic incompatibility system in which intra-morph (assortative) mating is prevented physiologically. Leaves heteromorphic, usually with dentate or digitate margin. However, it is important to recognize that this analysis assumes that post-pollination mechanisms play no significant role in influencing siring success, as they would in a species with heteromorphic incompatibility. Gabbro shows ambiguous, possibly liquid-liquid, contacts with porphyritic diorite, which resembles an altered or heteromorphic version of the gabbro. They also have a heteromorphic pair of central microtubules in the anterior axoneme. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The haploid prothallus does not resemble the sporophyte, and as such ferns and their allies have a heteromorphic alternation of generations. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The thin shelled heteromorphic ammonites probably lived at depths 36-183 m. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Plants with heteromorphic leaves generally have pinnately divided basal leaves with either filiform (feather-like) or linear segments, and undivided leaves higher on the stem. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Land plants all have heteromorphic (anisomorphic) alternation of generations, in which the sporophyte and gametophyte are distinctly different. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Seed producing plants, which include the angiosperms and the gymnosperms, have heteromorphic alternation of generations with large sporophytes containing much reduced gametophytes. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. In this species, there is a physical dimorphism: one type is cryptic (heteromorphic) and the other type looks like a male (andromorph). From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The initial part (juvenile stage) of the shell is generally more or less involute (tightly-coiled) and compressed, giving no hint of the heteromorphic shell form yet to come. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Some early plants may have had heteromorphic alternation of generations, with later acquisition of isomorphic gametophytes in certain lineages. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The two style morphs are genetically determined, so the pollen from one morph does not fertilize the other morph, resulting in a form of heteromorphic self-incompatibility. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Heteromorphic flowers have short carpels and long stamens, or vice versa, so animal pollinators can not easily transfer pollen to the pistil (receptive part of the carpel). From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. |
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