Scientists count a species population by adding up the individuals who leave an area or die. Thus, option A is correct.
In ecology, a population is made up of all the creatures of a certain species that are found in a specific location. Demography is the statistical study of populations and how they evolve through time.
Population size, or the total number of people, and population density, or the number of people per unit of space or volume, are two crucial indicators of a population. Quadrats and the mark-recapture technique are frequently used by ecologists to assess the size and density of populations. A population's distribution, or dispersion, of the individuals that make it up, may also be used to define it. Individuals may be dispersed uniformly, randomly, or in clusters. Random spacing denotes uneven spacing, uniform denotes equally spaced individuals.
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The correct answer is to add up the individuals who leave an area or die, which is option b, as when scientists count a species population, they typically use a method known as population census or population sampling.
Sampling is a method where scientists select a representative sample area within the species' habitat or range. This sample area should be large enough to be representative of the entire population but manageable for counting and data collection. Scientists then count the number of individuals within the sample area. Once the number of individuals within the sample area is determined, scientists use statistical methods to extrapolate this information to estimate the total population size.
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B)they are more concerned with Communist party matters
C) religion was discouraged by the Soviet Union's government
D) economic hardship has made the people bitter
Thurgood Marshall argued the case on behalf of the NAACP.
B.
Brown v. Board of Education declared that segregated public schools were acceptable under the constitution.
C.
The Supreme Court justices were unanimous in their ruling.
D.
Brown v. Board of Education reversed the decision in Plessy v. Ferguson.
B) Northern factory workers revolted against the government in protest against immigration policies that led to high unemployment.
C) Farmers, many of whom were Revolutionary War veterans, rebelled against the Massachusetts government because of heavy debts and high taxes.
D) African-American slaves in Virginia led an armed uprising against their masters in protest against cruel treatment and harsh living conditions.
Answer
Farmers, many of whom were Revolutionary War veterans, rebelled against the Massachusetts government because of heavy debts and high taxes.
Explanation
Daniel Shays was Revolutionary war veteran who began the rebellion by taking over the court of common pleas.His main aim was to prevent the trial and imprisonment of debt-ridden citizen.His protests included many poor farmers and war veterans who attempted to shut down the state's courts in protest at the debt burden on veterans and high taxes on farmers by the Massachusetts government.