The primary and most significant greenhouse gas emitted from human activities is carbon dioxide. Burning of fossil fuels is the major cause of increased carbon dioxide emission.The burning of coal, oil, and natural gas is an important energy source to produce electricity.
<span>If an island had 1000 cats on it, an ecologist would use the word 'population' to describe all the members of that species</span>
The prenatal development of the internal reproductive structures of the male requires the <span>secretion of androgens.</span>
Something people think is true is C.Belief
Mendel's was sucessful geneticist becasue of the following reasons
1) he worked on pisum sativum which is bisexual
2) short duration of life cylce
3) its an annual plant
4) he was also having gud knowleged of statics
