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.
PLATO USERS
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[ Found Dead On The Shore ]
[ Medium Size ]
[ Animal-Like ]
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[ a ] as nekton
[ b ] as a benthic organism
[ c ] as plankton
[ d ] <u><em>"There Is Not Enough Information To Tell."</em></u>
Answer:
hydrogen bond
Explanation:
The slight positive charges on the hydrogen atoms in a water molecule attract the slight negative charges on the oxygen atoms of other water molecules. This tiny force of attraction is called a hydrogen bond. This bond is very weak.
ATP looses one phosphate group and converts to ADP
