Question 1 of 10 Which statement best describes the law of conservation of energy?
O A. Energy can be destroyed only in open systems.
B. Energy cannot change forms in closed systems.
O C. Energy is neither destroyed nor created during energy
transformations.
O D. The total energy in an isolated system can only decrease.

answer; i believe its (ovulation);

brain development. a child's brain undergoes an amazing period of development from birth to three—producing more than a million neural connections each second. the development of the brain is influenced by many factors, including a child's relationships, experiences and environment.

explanation:

condenser is used to focus in the light microscope.