某校生物研究性学习小组在对某森林生态系统进行种群密度调查后，得到如下统计数据
请根据以上调查结果回答下列问题：
甲种群与乙种群之间存在着（）关系，可能是导致甲种群密度变化的重要因素，而影响甲种群密度变化的其他生物因素可能还有（）。
参考答案：竞争；种内斗争、寄生、捕食等
解析：
（1）由表中数据可知，甲种群与乙种群之间存在着竞争关系。影响甲种群密度变化的生物因素除了竞争以外还有种内斗争、寄生、捕食等。
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| It all started at the beginning of the ninth grade. Carmen found she couldn't see things 1 all the time. She became very worried, but she hoped 2 would know that. When her mother asked her to see the eye doctor, she didn't 3 . But her mother's mind was made up. Three days later. Carmen got new glasses and instructions 4 . her doctor."All of the kids will think I'm silly." Carmen said. Her mother 5 and shook her head."You look just as beautiful as before, she said. But Carmen didn't believe her. The next day. Carmen kept the 6 in her pocket (口袋) as she walked into the schoolyard. She stood alone away from her friends, feeling 7 Suddenly, she heard her friend Theresa shout. Carmen ran over to the other girls."What's the 8 ?" she asked. "My ring is gone!" Theresa cried."My sister sent it to me from California. It's very 9 and I can 't lose it." Carmen and her friends began to 10 the ring in the grassy area of the playground. Carmen realized that she could do better 11 she could see better. She took the glasses out and put them on. Everything looked so 12 ! So clear! She looked down at the ground and a bright light caught her 13 . It was the ring. "Here it is," she shouted. She handed it to Theresa. "Thanks, Carmen," she said." I 14 thought we'd find it." She paused (停顿)."Hey, I didn't know you wore glasses. They look great!" Carmen had 15 that she was wearing the new glasses. "Thanks," she replied. "Maybe wearing glasses won't be so bad after all." Carmen thought. | ||||
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