A second reason why plants have so many genes might be gene duplication, or more precisely gene retention following gene duplication. Gene duplication and retention in plants has been extensive and gene families are generally larger in plants than in animals. Furthermore, most (if not all) plant...
As to what plants to be grown on the moon researchers are still deciding, but one of the front runners under consideration is Tripogon loliiformis, a kind of Australian native(本土的)grass that can live in extreme condition...
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How many spark plugs are in a combustion engine? How many phonemes does the English language have? How many stigma does a sunflower have? How many families are in the order Pholidota? What is the pistil of a flower? How many types of environmental pollution are there?
Is there a place where you could plant a tree or put in a little fruit or vegetable garden? If so, get there and get your hands dirty. Then you can watch with pride as your plants are full of fruits.1. Translate the underline sentences (A) into Chinese.___2. 从文中找出与You sho...
Plants in the rose family usually have five petals and sepals with numerous stamens. Several economically important products come from the rose family, including many edible fruits (such as apples, pears, quinces, cherries, peaches, raspberries, and strawberries), ornamental trees, and shrubs (suc...
The woman knows many different languages. D) The man wishes to visit many more countries. 14. A) Go to the library. B) Meet the woman. C) See Professor Smith. D) Have a drink in the bar. 15. A) She isn t sure when Professor Bloom will be back. , B) The man shouldn t be...
a99.Steve Jones is an environmental expert who tries to keep animals and plants from becoming endangered. 99.Steve琼斯是设法保留动物和植物从变得危及的一位环境专家。[translate] a我很开心你能写信给我。 I am very happy you to be able to write a letter for me.[translate] ...
Our world is originally mountains, vast sea is blue, the vast sky is blue, the earth on which we live there are so many beautiful scenery, let us can not help but to admire the beauty of this world. In this world there are ten million species of creatures, they get along, together ...
With 1 million insect species named, this suggests that 80% remain to be discovered and that a greater focus should be placed on less-studied taxa such as many families of Coleoptera, Diptera, and Hymenoptera and on poorly sampled parts of the world. DNA tools have revealed many new species...