<span>The correct option is this: THE HEART BEGINS BEATING.
A fertilized egg takes about 40 weeks to reach full maturity. At week 5, the developing fetus resemble a tadpole; at this stage, the circulatory system has begin to form and the tiny heart has started beating and the baby is the size of a sesame seed. By week 6, the heart beat of the baby can fully be detected through scan.</span>
The answer is A. Rabbits eat grass. The snakes eat the rabbits and the hawks eat the snakes. So if rabbits died off, so would the snakes, and the hawks. Because both of their food sources would deplete. And grass would flourish.
<span>It has expanded the size of the market that a farm can supply produce to.
Hope this helps!
-Payshence xoxo</span>
During middle age, the ability to hear higher-pitched sounds declines first.
Presbycusis is the aging-hearing loss that occurs as a result of the aging process. It is a slow process that affects botrh ears equally thus difficult to notice, the first signs is the inability to understand speech in noisy environments and high frequency sounds.
Proteins, among the most complex of all organic compounds, are composed ofamino acids , which contain carbon, hydrogen, oxygen, and nitrogen atoms. Certain amino acids also have sulfur atoms, phosphorus, or other trace elements such as iron or copper.
