I think the answer is The first sentence and until the molecules in the third sentence.
Hope This Helps
A meander forms when moving water in a stream erodes the outer banks and widens its valley, and the inner part of the river has less energy and deposits silt. A stream of any volume may assume a meandering course, alternately eroding sediments from the outside of a bend and depositing them on the inside.
A new cycle starts on the first day of her period, for 3-8 days. 14 days after the first day of the recent period, ovulation happens, & the lining builds up.
So basically, ovulation.
Hope that makes sense & helps. (:
Answer:
PCR is used in many research labs, and it also has practical applications in forensics, genetic testing, and diagnostics. For instance, PCR is used to amplify genes associated with genetic disorders from the DNA of patients (or from fetal DNA, in the case of prenatal testing).
A. It is used to protect the cell membrane
