Question 5
The process where one group of species is replaced with others over time is called .

a. Climax community
b. Natural selection
c. Ecological succession
d. Evolution

The correct option is c) Ecological succession

Explanation:

Ecological succession can be described as a process by which an ecosystem develops either in a community which had been destroyed or which had no form of life before.

The species structure of an ecosystem changes over time in an ecological succession. The community which is formed as the end result of the succession process is known as climax community.

energy per photon is e = h*c / λ  

e = 6.63*10^-34 * 3*10^8 / 6*10^-7 j = 3.315*10^-19 j  

nr. of photons = 10j / 3.315*10 = ^-19 j per photon = 3.02*10^19 photons