A. remove contaminants from people and equipment
decontamination: the process of cleaning an object or organism from contaminants and/or hazardous stuff/chemicals
Usually, the baby's eyes will open around 26-28 weeks gestation.
The heart develops around week five, and begins to beat at the end of the 5th week. A heartbeat via ultrasound by 6 weeks, by 10-12 weeks you should hear the heartbeat with a Doppler device. A heartbeat usually won't be detected at 4-5 weeks of pregnancy.
Preparation for childbirth begins anywhere from 30-32 weeks during the process called lightening (the baby turns to a head-down position), however, the baby can flip to the head-down position, then flip again, and so on.
The formation of hair and eyelashes begins during week 22, so the answer is B. Formation of hair and eyelashes.
The words you are looking for are complex and large.
Complex carbohydrates like those of these plants usually belong to two types; Starch and Fiber. These complex carbohydrates are meant to store energy for the plant in case of periods of little production of simple energy forming carbohydrates like Sucrose and Fructose. Because of the complex nature of these molecules, it takes a while to break them down (Fiber is especially difficult as humans do not have the specific stomach flora and enzymes to break it down).