Pine trees are usually believed to _______ cold weather.
举一反三
- 2. I don’t likevery hot weather(and, or) very cold weather.
- Why do British usually greet each other with talking about weather? A: Because they are quite concerned about weather. B: Because weather is the most important factor to influence their daily life C: Because talking about weather is more neutral and safe. D: Because it’s interesting to talk about weather.
- Weather the plane will take off ____ the weather.
- The weather was very cold
- Two types of pine trees share a common habitat in eastern Texas. Although both types of pine trees produce pollen at the same time, the pollen grains from one type of pine tree are not able to pollinate the ovules of the other type of pine trees. Which of the terms describes the relationship between the two types of pine trees? I. prezygotic isolationII. postzygotic isolationIII.habitat isolationIV. sympatric species A: I only B: I and IV C: II only D: II and III