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.
Answer:
The pulmonary artery carries blood from the heart to the lungs.
Explanation:
Answer:
Skill-related fitness includes agility, speed, coordination, balance, power, and reaction time. It's still important for children to develop physical skills in order to perform physical activity as adults, but health-related fitness is a more important objective and is necessary for all people.
Explanation:
<h2>Muscles in legs </h2>
There are three muscles in the human legs. The hamstrings are three muscles which are located at the back of the thigh that affect knee and hip movement. They start under the gluteus maximus behind the hip bone and then attach to the tibia bone at the knee. These are biceps femoris which is the long muscle in the body that flexes the knee.
