| 1. | It grows twice as fast as the second colony . 它增长的速率是第二个群体的两倍。 |
| 2. | A degree of collective immunity may be observed . 可见到一定程度的群体免疫力。 |
| 3. | The social behavior of dogs is similar to that of wolves . 狗的群体行为与狼相似。 |
| 4. | This difference arises from their frame of reference . 这种不同来自他们相关群体的构成。 |
| 5. | The play group is assuming an increasing importance . 娱乐群体正在获得日益增长的重要性。 |
| 6. | They have had serious effects upon the biota of stream . 它们对河流中的生物群体产生严重影响。 |
| 7. | Monoploid peaches have been obtained from seedling populations . 从实生群体里曾经得到过单倍体桃。 |
| 8. | They know how easily group process can become dysfunctional . 他们知道群体作用会多么容易使机能失调。 |
| 9. | Sometimes social conditions spawn great numbers of communal groups . 有时,社会状况酿成了一批共同群体。 |
| 10. | Wild populations of trees usually carry a large "genetic load" . 树木的野生群体往往具有大量的“遗传负荷。” |