During meiosis, genetic recombination results because – a
Genes from different species can freely mix together.
b
Chromosomes assort independently and crossing-over occurs.
c
Gene mutation occurs more frequently than at other times.
d
Cells divide only once, resulting in genetically identical cells.

burning of wood and coal

explanation:

the panel also concluded there's a better than 95 percent probability that human-produced greenhouse gases such as carbon dioxide, methane and nitrous oxide have caused much of the observed increase in earth's temperatures over the past 50 years.

an organism's phenotype is the  form of a trait  that it  displays. for  flowercolor, a pea  plant  can  display  a phenotype of purple or white flowers. an organism's  genotype  is the alleles of a gene it contains. based on his data, mendel concluded that a phenotype can be  determined  by more than one  genotype.

make   gliitsh plesea   !

its temperature is increasing. this causes molecular vibrations to increase.