Answer:
A. Obtaining nutrients and getting rid of waste
An exchange reaction occurs between compounds that, when written as a molecular equation, appear to involve the exchange of parts between the two reactants. An exchange reaction will occur when ions in solution form insoluble products, weak electrolytes, or non electrolytes.
Meiosis 1 starts with one cell, ends with two.
Meiosis 2 starts with two cells, ends with four.
Meiosis 1 lines up with homologous pairs (Metaphase 1).
Meiosis 2 lines up straight in a line with no pairs (Metaphase 2).
Meiosis 1 one goes from Diploid to Haploid.
Meiosis 2 goes from Diploid to Diploid.
In each ventricle is a blood vessel network called the choroid plexuses that produces cerebrospinal fluid. This blood vessel consists of ependymal cells