Consider the following statements regarding Lamarckism and choose the correct answer:
1. Lamarck believed that change of form of either plants or animals was due to change in environment
2. Lamarck had the idea that organs of plants and animals are developed according to their urgent need
3. Constant use or exercise of organs results in the formation of new organs or increase in size
4. The living beings both plants and animals produce in nature more offsprings than could ordinarily survive