crude oil is composed of B. Hydrocarbons
The exchange of genetic material between non-sister chromatids that may result in new gene combinations on the chromosomes is called the random assortment. It involves formation of random combinations of chromosomes in meiosis and of genes on different pairs of homologous chromosomes by the passage according to the laws of probability of one of each diploid pair of homologous chromosomes into each gamete independently to each other pair.
1.Biological species concept
2.Cladistic species concept
3.Cohesion species concept
4.Competition species concept
5.Ecological species concept
6.Evolutionary species concept
7.Isolation species concept
8.Phenetic species concept
9.Phylogenetic species concept
10.Recognition species concept
11.Typological species concept
For descriptions just look them up :)
The answer is Abduction. In medicine and biomechanics, movements of limbs and other body parts toward or away from the center line of the body are termed as adduction and abduction respectively. Adduction is the movement of a body part toward the body's midline. Abduction is the movement away from the mid line. For example, abduction of the shoulder raises the arms out to the sides of the body.
Factories, cars and cigoretes.
All of these things are polluting the air cuasing it to heat up more which is cuasing global warming