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> 鱼类受精卵的孵化受水温影响很显著,下列表格和曲线图是某种鱼的受精卵在不同水温中孵化的实验结果:水温(℃)1418222630343842平均孵化率(%)0557092845660请根据图表数据分析回-
鱼类受精卵的孵化受水温影响很显著,下列表格和曲线图是某种鱼的受精卵在不同水温中孵化的实验结果:水温(℃)1418222630343842平均孵化率(%)0557092845660请根据图表数据分析回-
题目简介
鱼类受精卵的孵化受水温影响很显著,下列表格和曲线图是某种鱼的受精卵在不同水温中孵化的实验结果:水温(℃)1418222630343842平均孵化率(%)0557092845660请根据图表数据分析回-
题目详情
鱼类受精卵的孵化受水温影响很显著,下列表格和曲线图是某种鱼的受精卵在不同水温中孵化的实验结果:
水温(℃)
14
18
22
26
30
34
38
42
平均孵化率(%)
0
55
70
92
84
56
6
0
请根据图表数据分析回答:
(1)该种鱼的受精卵在水温为______℃时平均孵化率最高。
(2)在18℃~38℃温度范围内,平均孵化率与水温的关系是:在18℃~28℃之间,随水温上升,平均孵化率_______;在26℃~38℃之间,随水温上升,平均孵化率________。
(3)若将14℃和两组鱼受精卵所处的水温分别逐步调节到26℃,结果14℃组的能孵化出鱼苗,而42℃组的不能孵化出鱼苗,原因是:42℃组的鱼受精卵______________。
(4)水温在18℃~34℃之间时,鱼受精卵平均孵化时间与水温的关系是__________________________。
题型:读图填空题
难度:偏难
来源:专项题
答案
(1)26
(2)上升;下降
(3)已经死亡
(4)随着水温的升高平均孵化时间减少
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题目简介
鱼类受精卵的孵化受水温影响很显著,下列表格和曲线图是某种鱼的受精卵在不同水温中孵化的实验结果:水温(℃)1418222630343842平均孵化率(%)0557092845660请根据图表数据分析回-
题目详情
(1)该种鱼的受精卵在水温为______℃时平均孵化率最高。
(2)在18℃~38℃温度范围内,平均孵化率与水温的关系是:在18℃~28℃之间,随水温上升,平均孵化率_______;在26℃~38℃之间,随水温上升,平均孵化率________。
(3)若将14℃和两组鱼受精卵所处的水温分别逐步调节到26℃,结果14℃组的能孵化出鱼苗,而42℃组的不能孵化出鱼苗,原因是:42℃组的鱼受精卵______________。
(4)水温在18℃~34℃之间时,鱼受精卵平均孵化时间与水温的关系是__________________________。
答案
(2)上升;下降
(3)已经死亡
(4)随着水温的升高平均孵化时间减少