C. is the correct answer and BTW I don't know if it was U or not there was a question about when the carbon is realised from non living to living environment the answer to that question would be photosynthesis
The answer is <span>Crossing over occurs between pro-phase 1 and meta phase 1 and is the </span>process <span>where </span>homologous chromosomes<span> pair up with each other and </span>exchange<span> different segments of their </span>genetic material<span> to form recombination </span>chromosomes<span>. ... Crossing over is essential for the normal segregation of </span>chromosomes<span> during meiosis.</span>
There are two types of respiration namely aerobic and anaerobic respiration. Anaerobic respiration requires oxygen while anaerobic respiration does not require oxygen. The products of anaerobic respiration (also referred to as fermentation) in yeast are carbon iv oxide and ethanol. Anaerobic respiration has a range of applications in the society which includes Brewing process (bear making process) in alcohol industry, bread making process( baking) in baking industry.
I believe it would be C.) Lemon juice because it has the lowest ph, meaning it is very acidic.