Reproduction and Mortality

Imagine life without reproduction, are we all here today and see the beauty of the planet we live? At what extent do we exist?

The existence of life is only possible through the biological process called reproduction. Reproduction is the biological process by which new "offspring" individual organisms are produced from their "parents".

There are two main types of reproduction: sexual and asexual reproduction. Sexual reproduction is the formation of a new individual following the union of two gametes. This is common to human, animals and eukaryotes plants.

The human sperm (colored pink) is attempting to penetrate the egg whose surface attracts the sperm and enables it to attach.

Mating frogs on Mekong River bank, Laos

Asexual reproduction is a mode of reproduction by which offspring arise from a single parent, and inherit the genes of that parent only. It is very common in plants; less so in animals.

Asexual reproduction of new individuals along a leaf margin of the air plant, Kalanchoe pinnata. The small plant in front is about 1 cm (0.4 in) tall.

Population: The Impact of Reproduction

Through reproduction, the living organisms able to reproduce and increase its number resulting to gain population. A population is all the organisms that both belong to the same species and live in the same geographical area. A forest build out of different kinds of plants. An ecosystem compose of different organisms that interact one another. A city compose of people and its inventions. Human population is one of the serious problem in the world now a days especially in the developing countries like the Philippines.

Is death the end of everything?

Mortality

“One day your life will flash before your eyes. Make sure its worth watching.”

Every living organism is capable to death. Death is the termination of the biological functions that sustain a living organism . Plants, animals and human beings are no escape of death. Practically, death is the end of ones life. But if you compare the rate of death to the rate reproduction, there's a big difference there. Why? Because the rate of death is lesser compare to the rate of reproduction. In human, the ratio of birth compare to death is 2.5:1

It could be means that an organism may die but it will leave a number of offspring that is more than in its self lost.

Steller sea lion pups in Alaska

The canopy of a Palawan forest is so thick that even the bright Philippine sun barely reaches the forest floor

As of 6 May 2011, the world population is estimated by the United States Census Bureau to be 6.917 billion. Asia accounts for over 60% of the world population with more than 4 billion people. China and India together have about 37 percent of the world's population. Africa follows with 1 billion people, 15% of the world's population. Europe's 733 million people make up 11% of the world's population. Latin America and the Caribbean region to 589 million (9%), Northern America is home to 352 million (5%) and Oceania to 35 million (less than 1%).

Populous area in Shanghai, China

The Philippines is one of the most and fast growing population of the world. As of February 3rd 2011, the Philippines is ranked 12th as the most populous country with an estimated population of 94,013,200.