Answer
At week 5-6 of gestation, the baby’s heart starts beating.
Explanation
Fertilization occurs in week 3 followed by implantation in week 4.In week 5 the levels of hormones increases with formation of the baby’s heart and circulation system. In week 6, the neutral tube closes followed by development of structures necessary to form eyes and ears. The head of the baby develops at week 7 followed by nose in week 8 and toes in week 9.
Breaking bonds takes energy, forming bonds releases energy
If you break more bonds than you form it would be an endothermic reaction
Sports drinks are the best choice.
Answer:
way of seeling and product that he/ she is seeling
1.pontential energy 2. kinetic energy
