at what level of organization does life begin

>Body fat - There is redistribution of fat to deeper parts of the body from the skin. In women, fat is generally stored in the hips and thighs, while in men it is stored in the abdominal area. Retention of water - The capacity of body cells to retain water decreases. This makes the skin dry and wri..

Organism and Its Characteristics - An organism is a distinct unit of life in nature. It is said to be the smallest level and basic unit of ecological hierarc..

An organism is a distinct unit of life in nature. It is said to be the smallest level and basic unit of ecological hierarch..

When all the hydrogen gets exhausted, fusion stops and as a result the internal pressure, which keeps the star from collapsing under its high gravitational force decreases and the core contracts under its own gravity. However, the hydrogen in the outer shell fuses to helium and releases energy. Bu..

Living organisms, like any non-living matter, are composed of some basic elements. The same physical laws such as gravitation, magnetism, thermodynamics etc., also bind living organisms. Yet, living organisms differ from non-living in fundamental characteristics such a..

Living organisms, like any non-living matter, are composed of some basic elements. The same physical laws such as gravitation, magnetism, thermodynamics etc., also bind living organisms. Yet, living organisms differ from non-living in fundamental characteristics ..

Living organisms, like any non-living matter, are composed of some basic elements. The same physical laws such as gravitation, magnetism, thermodynamics etc., also bind living organisms. Yet, living organisms differ from non-living in fundamental characteristics ..

. Speciation does not intend to convey the dieing out of one inferior species giving way to superior ones. Species adapt to the conditions available in their environment. Some older and simple species live on quite effectively. The scorpion, is one of the more primitive invertebrate which..

The evolutionary process has developed over millions of years. Lineages evolved and split and modifications occurred gradually in stages. Life has been in existence on Earth for at least 3.5 billion years but the first two stages of evolution took place in the space of a billion years! T..

. Without this natural 'greenhouse effect', temperatures would be much lower than they are now, and life as known today would not be possible. Instead, thanks to greenhouse gases, the earth's average temperature is a more hospitable 60 0 F. However, problems may arise when the atmospheric..