"A gene pool consists of all genes, including all the different alleles that are present in a population. Number of times an allele occurs in a gene pool compared with the number of times other alleles occur. In genetic terms, evolution is any change in the relative frequency of alleles in a population."
They are found in any habitat but most live on lan, mainly in soil or on plant material
Hydrophilic means "water-loving," which means that hydrophilic molecules readily associate with polar molecules such as water.
They each contain chlorophyll that absorbs violet-blue light and reflects green light.
Mitochondria is the powerhouse of a cell