In order to grasp the concept of molar mass calculations it is important to understand the molar unit. The mole also called mol is the basic unit of measurement in chemistry. By definition, in modern chemistry, one mole represents the number of carbon atoms in exactly 12 grams of carbon 12 isotope.
Fetal development during the first trimester. The most dramatic changes and development for your baby occur during the first trimester. Itâs also during this time that the fetus is the most susceptible to damage from alcohol, drugs, certain medications, and illnesses.
âMost babies are born healthy and most hazards can be avoided.âThere are very few prenatal factors that can harm a developing person.âPrenatal exposure to a dangerous substance is only harmful in the first trimester of the pregnancy.âResearch has proven that drinking alcohol (in any amount) during pregnancy is safe.ne mother was made of soft terry cloth, the other made of wire mesh 27 âMonkey Love Experimentsâ â Harlow's research showed that the need for affection created a stronger bond between mother and infant than did physical needs (food).