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.
The heart begins beating, in the 5th-6th weeks of gestation
The first thing that happens in a developing child is the heart begins beating in 5-6 weeks of gestation. This is followed by the baby’s brain and spinal cord will develop from the neural tube.
I’m almost positive it’s C cause speed is very common within predator, and prey species predators to catch the prey and prey to try and survive the predators.
Serial Monogamy is the behavior n mating in which one male breeds with a female for a certain period of time and then finds a different mate the following mating season. It is defined as a succession of short monogamous relationships or <span>the practice of having a number of long-term romantic or sexual partners in succession.</span>
