One modern idea on the origin of life states that simple organic molecules such as water vapor, carbon dioxide, nitrogen, methane, and ammonia were mixed together to create life. what was the mixture called?

Sounds quite appealing as the molecules listed are relatively common. However, they are only reactive under precise environmental conditions, including energy, which are far from adequate to produce the progressively higher levels of complexity required for the levels of biochemical assembly needed for life.

The next higher levels also require sulfur and phosphorus for the formation of homochiral amino acids and sugars, which are elemental level molecules required for DNA construction, which is found in all living things. These ostensibly are the "organic molecules" but only function as homochiral versions.

The mixture is solids, liquids and gases, which makes a name of mythical primordial or prebiotic soup most likely.

the answer is tropical areas. the tropical areas obtain more

radiant energy from the sun than they lose to space through terrestrial

radiation, and vice versa for polar areas. earth has an energy remaining in the

tropics and an energy scarcity for the polar areas.

explanation:

1) gene flow

- it is described as the transfer of genes from one population to another population so that frequency of gene is increased.

-a zebra migrates to join a different herd of zebras.

2) natural selection

- a mechanism of evolutionary change in which individuals with advantageous traits survive and reproduce whereas the others ( those that can not adapt) eliminate from the population.

-competition for sunlight leads to taller trees.

3) mutation

- permanent change in the nucleotide sequence of dna ( genetic material) that could have harmful or useful consequences.

-the dna of a snake changes to make its venom stronger.

4) genetic drift - it is a random phenomenon ( that occurs by chance such as fire) that results in change in the gene frequency in a small population.    

-a grassfire randomly sweeps through a population of buffalo and kills most of the animals.

explanation: