<span>Crossing over or Chromosomal crossover is the process that
occurs in cells between the stages of phrophase I and metaphase I in meiosis. It is important
because it is responsible in the exchange of genetic material between
homologous chromosomes during sexual reproduction. This process ensures the
normal segregation of chromosomes during meiosis, and genetic variation.
Homologous chromosomes pair up with each other and exchanges segments of their
genetic material to form new chromosomes. Thomas Hunt Morgan described crossing
over in his theory of genetics. </span>
<span>Those based on observation, measurement, and reason.</span>
Jenna and Allen are both correct. Homeostasis refers to certain processes that take place to keep the body in normal or stable state. Maintaining the body temperature at normal measurement is an example of homeostasis, as well as increasing breathing rate when exercising. Breathing and heart rate is increased to deliver oxygen and glucose to the body more quickly and remove carbon dioxide wastes.
The cells are generally the same but animal cells don't have a cell wall and also there vacuole is smaller than plants
I think is heat but I’m not sure