Child Growth and Development (Nine Weeks Test) Unit 1

Grace is studying prenatal development for her biology class. She learns that from the 8th or 9th week of pregnancy until birth, a baby's body, head, arms, and legs grow, as do its internal organs. What stage of development is Grace learning about?

• Period of the zygote

• Period of the embryo

• Period of the fetus

• Period of the human

Ava is studying prenatal development in her biology class. She learns that from 3-8 weeks, a baby goes through a stage where cell masses develop into major body systems, the amniotic sac forms around the baby, and the placenta develops. What is this stage called?

• Period of the zygote

• Period of the embryo

• Period of the fetus

• Period of the human

Aria is learning about early human development in her biology class. She reads that during the first 2 weeks after conception, the developing baby travels down the fallopian tube and attaches itself to the lining of the uterus. At the end of this stage, it is the size of a pinhead. What stage of development is this?

• Period of the zygote

• Period of the embryo

• Period of the fetus

• Period of the human

Hannah is learning about the physical changes that commonly occur to mothers during pregnancy. Which of the following is NOT a typical change she should expect?

• changes in digestive system

• increase in size of breasts and abdomen

• pressure on bladder

• major weight loss

Abigail is pregnant and has been experiencing some discomforts. She mentions having a backache, a headache, and recently noticed the loss of her mucus plug. She is unsure which of these is a normal discomfort and which might be a serious complication that needs immediate attention. Which of the following is NOT a common discomfort, but rather a serious complication which should be addressed immediately?

• Backache

• Headache

• Loss of mucus plug

• Menstrual periods

Sophia has recently noticed some changes in her body and is wondering if she might be pregnant. Which of the following is a common early sign of pregnancy that she should look out for?

• Excessive energy

• Nausea throughout the day

• Loss of mucus plug

• Menstrual periods

Priya is learning about pregnancy in her biology class. She wants to know which tissue in the uterus of a pregnant woman brings food and oxygen from the mother's body to the developing baby. What is the name of this tissue?

• Ovum

• Placenta

• Umbilical cord

• Uterus

Zoe is learning about how babies get nutrients and oxygen before they are born. Her teacher explains that there is a tube that connects the placenta to the unborn child, which nourishes it, gives it oxygen, and takes away wastes. What is this tube called?

• Ovum

• Placenta

• Umbilical cord

• Uterus

Grace is learning about human biology in her science class. She wants to know which reproductive organ in a woman is where the baby develops. What is the correct answer?

• Ovum

• Placenta

• Umbilical cord

• Uterus

During a biology class, Oliver learned that sperm is the male sex cell needed for reproduction. What is the female sex cell needed for reproduction?

• Ovum

• Placenta

• Umbilical cord

• Uterus