种群(population)
第1题:
A.增长型种群
B.稳定型种群
C.下降型种群
D.不变型种群
第2题:
根据种群的发展趋势,种群的年龄结构可分为________、稳定型种群和衰退型种群。
第3题:
种群的年龄结构含有大量的幼年个体和较少的老年个体,则该种群属于( )
A.增长型种群
B.衰退型种群
C.稳定型种群
D.混合型种群
第4题:
The population of the earth()increasing fast. One third of the population here()workers.
第5题:
遗传漂变通常发生在()
第6题:
种群生态学(population ecology)
第7题:
种群的年龄结构含有大量的幼年个体和较少的老年个体,则该种群属于()
第8题:
某一种群的年龄锥体的形状为基部较狭、顶部较宽,这样的种群属于()。
第9题:
第10题:
下降型种群
增长型种群
稳定型种群
波动型种群
第11题:
is; are
are; are
is; is
are; is
第12题:
January 2003
July 2004
January 2006
July 2007
January 2012
第13题:
A.种群的增长
B.种群的规模
C.种群的周期波动
D.种群数量下降
第14题:
Which of the following statements is NOT true?
A) World population is increasing at a rate of 150 per minute.
B) Lower death rates also contribute to world population growth.
C) The population of Columbia has been doubling every year for 21 years.
D) The United States is usually doubling its population about every 87 years.
第15题:
The population of the earth()increasing fast. One third of the population here()workers.
Ais;are
Bis;hasbeen
Care;is
Dis;was
第16题:
Western Australia is the biggest Australian state,but its population is only()of the country.s population.
第17题:
种群(population)
第18题:
某一种群的年龄结构的椎体图呈典型金字塔形,表明该种群是()
第19题:
种群的年龄结构含有大量的幼年个体和较少的老年个体,则该种群属于()。
第20题:
群体(population)
第21题:
is;are
is;hasbeen
are;is
is;was
第22题:
第23题:
It has a large immigrant population.
Its immigrant population is more than 3,000.
Its immigrant population totals 7,000.
Its immigrant population comes to less than 1% of the island’s 400, 000 population.
第24题: