A: the frequency of reproduction among individuals
B: the number of individuals with recessive phenotypes
C: the size of a population
D: the frequency of a particular allele
举一反三
- What information is provided by the Hardy-Weinberg calculations? A: it tells if there has been a change in the allele frequency of a population B: it tells if there has been changes to the phenotypes observed in a population C: it tells if an individual is fit for survival D: it tells if an individual is likely to undergo evolution
- Age distribution is the number of individuals of each age in the population which influences greatly the rate of population growth。 （ ）
- What is the niche? A: The role or function of a particular species B: A place in where the individuals of population live C: An animal population living in the forest D: A group of populations living together
- The frequency with which a disease appears in a population is referred to as _________rate. A: occurrence B: exchange C: morbidity D: currency
- Which of the following statements about statistical concepts is FALSE（） A: A frequency is a tabular display of data summarized into a relatively small number of intervals. B: B. An interval is a set of return values within which an observation not falls. C: C. A parameter is an descriptive measure of a population characteristic.
内容
- 0
____________ is the number of individuals of a species that can be maintained in an area， over time， without harming the habitat。 （ ）。 A: Vulnerability B: Population C: Carrying capacity D: Sustainability
- 1
Family Planning Policy is helpful to change the population reproduction type of China.
- 2
Which of the following statements about statistical concepts is FALSE（） A: A frequency distribution is a tabular display of data summarized into a relatively small number of intervals. B: An interval is a set of return values within which an observation falls. C: A sample contains all members of a specified group, but a population contains only a subset.
- 3
Which of the following is not a major component of evolution? A: Change B: Heritability C: Individuals D: Populations E: Time
- 4
Which<br/>of the following is the Y-axis of the histogram?() A: frequency B: relative<br/>frequency C: relative<br/>frequency density D: values<br/>of a variable E: rate