Which of the following shows the correct order of hierarchy from largest to smallest?

a. biosphere, biome, population, community, ecosystem, species

b. biosphere, biome, ecosystem, population, community, species

c. biosphere, ecosystem, population, biome, community, species

d. biosphere, biome, ecosystem, community, population, species

Answer:

Option D :- "Biosphere, biome, ecosystem, community, population, species" shows the correct order of hierarchy from largest to smallest

Explanation:

It is the arrangement of the biological organisms has relation with each other. From bottom to top movement more complex system of relationship are seen. In the first level it has the individual organism. This system is concerned with the biological, morphological and the physiological development of the organism with respect to the response to the environment. In the second level it has populations, means a group. Then is the ecosystem, here the non-living components are also present. Next is biosphere in this phase everything in the earth is present, along with their interaction.  

complete the square on the right side of the equation;

-5(x + 0)^2 + 15

answer: d. y = -x^2 + 15

a- all cells come from pre-existing cells