不小心将溶液溅到烧杯外____(填偏大、偏小或无影响)定容时俯视____摇匀后,发现溶液低于刻度线,加水至刻度线____.
Judging from the message they convey, these two chapters are __________ independent of each other, that is, they are not in connection with the other at all.
群落中植物的垂直结构为动物创造了多种多样的____ ,因此,动物也有分层现象.
用所给单词的适当形式填空。