1题目人教版高中《生物·必修3·稳态与环境》P.85:下列叙述中符合种群密度概念的是()A.某地区灰仓鼠每年新增的个体数B.一亩水稻的年产量C.每平方米草地中杂草的数量D.某湖泊每平方米水面鲫鱼的数量答案D2疑问王丽[河北省石家庄第四十二中学(050000)]D选项的“每平方米”是否应该改为“每立方米”?陶勇[广东省封开县江口中学(526500)]问 1 Subject PEP Senior High School “Biology · Compulsory 3 · Steady State and Environment” P.85: The concept of population density in the following description is () A. The number of individuals newly added to a gray hamster in a region B. One mu of rice Annual output C. The number of weeds per square meter of grass D. The number of carp per square meter of surface water in a lake Answer D2 questions Wang Li [Shijiazhuang No. 42 Middle School (050000)] D option “Should be changed to ” every cubic meter "? Tao Yong [Fengkou County, Guangdong Province Jiangkou Middle School (526500]] asked