Chapter 17: The Beginning of the Life Cycle

Asking many questions is a characteristic of middle childhood early childhood low self-esteem self-control An amniocentesis can show what genetic abnormalities the mother has. is performed after birth to check for FAS. is used to treat genetic disorders such as hemophilia. indicates whether the baby has a genetic disorder. Which vitamin helps in the production of red blood cells and supplies oxygen to cells? protein iron calcium folic acid Miscarriage and stillbirth can occur even when the pregnant female gets good prenatal care. always indicate that the pregnant female used drugs or alcohol during pregnancy. do not occur in women who use illegal substances. are the result of ectopic pregnancies. How many sperm are needed to fertilize an egg? 50 100 1 10 Which environmental hazard has been linked to miscarriage, low birth weight, mental disabilities, and behavior problems in children? exposure to radiation exposure to lead exposure to mercury exposure to smog Which of the following is an accurate statement? A baby's gender depends on the chromosome in the egg. Two X chromosomes result in a male. A baby's gender is determined by the sperm. Each egg and sperm cell contain a full set of 46 chromosomes. Which is the chemical compound that makes up genetic material? DNA proteins chromosomes genes Chorionic villi sampling is a procedure in which a syringe is inserted through a pregnant female's abdominal wall to remove a sample of the amniotic fluid surrounding the developing fetus. True False Between each cell division, each chromosome in the nucleus of a cell copies itself, producing two sets of the 46 chromosomes. True False A pregnant female should avoid physical activity in order to protect the health of her developing fetus. True False During middle childhood, children learn to initiate play rather than following the lead of others. True False Read the following list of events in the stages of embryonic and fetal development. Then sort each event into the trimester during which it usually occurs. It All Happens Before Birth First Trimester heart begins to beat fingers and toes form spinal cord grows faster than rest of body about 1" long Second Trimester weight increases rapidly fetus can hear conversations fetus has a regular sleep cycle limbs reach full proportion Third Trimester fetus may dream fetus passes water from the bladder baby is ready to be born fetus weighs six to nine pounds fetus uses all five senses Common Human Genetic Disorders Match the disorder to its characteristics. failure of blood to clot hemophilia mucus clogs many organs, including lungs, liver, and pancreas; nutritional problems; serious respiratory infections and congestion cystic fibrosis destruction of nervous system; blindness; paralysis; death during early childhood Tay-Sachs disease varying degrees of mental retardation, short stature, round face with upper eyelids that cover inner corners of the eyes down syndrome red blood cells have a sickle shape and clump together; may result in severe joint and abdominal pain, weakness, kidney disease, restricted blood flow sickle-cell anemia Development of Baby in Womb Please turn the sound off and see what you looked like when you were still in the womb. Contractions Explanation with a Balloon Please watch the video to see how the uterus contracts during childbirth. Crash Course : Pregnancy and Development Please watch the video and answer the following prompt. Please write 5 facts you learned from this video (bullet points are fine). Crash Course: Heredity You do not have to watch this video, but it has some neat information. Life's Greatest Miracle This is not a required video. This is the PBS special on the miracle of birth.