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.
Answer:
c. The products of one process are the reactants of the other process
Explanation:
CARBOHYDRATE and oxygen is the product of photosynthesis while it is reactant in respiration.
Similarly, Carbon dioxide is the reactant of photosynthesis while it is product of respiration.
