sex ratio
英 [seks ˈreiʃiəu] 美 [sɛks ˈreʃo]

n.

男女人口比例；

英英释义

Sex ratio

• Sex ratio is the ratio of males to females in a population.

以上来源于:Wikipedia

权威例句

EXTRAORDINARY SEX RATIOS.
Sex ratio and unisexual sterility in hybrid animals
Sex Ratios and Reversals: The Theory of Sex Allocation
Sex ratio and local resource competition in a prosimian primate.
The dynamics of operational sex ratios and competition for mates
Natural Selection of Parental Ability to Vary the Sex Ratio of Offspring
Some Effects of Proportions on Group Life: Skewed Sex Ratios and Responses to Token Women
The Competitive Saving Motive: Evidence from Rising Sex Ratios and Savings Rates in China
Extraordinary sex ratios. A sex-ratio theory for sex linkage and inbreeding has new implications in cytogenetics and entomology.
QUASI-REPLICATION AND THE CONTRACT OF ERROR: Lessons from Sex Ratios, Heritabilities and Fluctuating Asymmetry