Old Roast Duck IELTS - Focus on IELTS preparation

Cambridge IELTS 5 test 4 passage 3 Effects of light on animals Today, we will read the article on vocabulary to study Cambridge IELTS 5 test 4 passage 1. This IELTS reading article introduces the effects of light on animals. At the beginning, the article first explains why light is important to organisms, then introduces the photoperiod phenomenon, and then describes the impact of this phenomenon on birds, plants, etc. According to the convention, let's summarize