new test for citizen

Lamarck suggested that new needs arise in the organisms as the ever-changing environment influences them. Changes in the environment create a new need in the organism for adapting to that change, failing which the organism cannot surviv..

Intentional or chance introduction of exotic species into new islands or countries by man adversely affects the native species. Example: Rabbits and goats introduced in Pacific and Indian ocean islands are destroying the habitats of many native plants, reptiles and bir..

A species is a group of similar organisms, which can breed among themselves producing fertile offsprings. The members of a species not only share a common gene pool, but also share a common ancestry. Origin of a new species from the existing one, is called speciation. It is an important a..

While arranging the elements, in increasing order of atomic mass, Mendeleev left three blanks for elements that were not discovered at that time. He was able to predict the properties of these unknown elements more or less accurately. He named them eka-boron, eka-aluminium and eka-silicon. He name..

The box-and-whisker plot displays the number of senior citizens (in thousands) in retirement homes in the U.S. What is the median of the data? => 1300000 or 700000 or 7500000 or 1000000..

The box-and-whisker plot displays the number of senior citizens (in thousands) in retirement homes in the U.S. What is the median of the data? => 1300000 or 1000000 or 7500000 or 700000..

21 new members joined an organization in 1999. Now the number of employees in the organization is 300. Find the percent of new employees. => 12% or 19% or 17% or 7%..

In which year is the difference between the populations of New York and Los Angeles the largest? => 1980 or 1970 or 2000 or 1990..

The population of New York is _______ the population of Los Angeles in the year 1980. => five times or equal to or less than or more than..

Identify a reasonable unit to measure the weight of a new born child. => liters or kilograms or milligrams or meters..