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What is the primary function of the umbilical cord during pregnancy?
AIt connects the developing fetus to the placenta, providing nutrients and oxygen
BIt regulates the mother's heart rate
CIt produces breast milk
DIt produces the baby's blood cells exclusively
What does BMI, or Body Mass Index, use to provide a general estimate of whether a person’s weight falls within a healthy range?
AAge and eye color
BBlood pressure alone
CMuscle strength testing
DA person's weight and height
What is the primary function of the placenta, a temporary organ that develops during pregnancy?
AIt produces the mother's eggs
BIt regulates the baby's future eye color
CIt replaces the need for an umbilical cord
DIt exchanges nutrients, oxygen, and waste products between the mother and the developing fetus
Iron-deficiency anemia, one of the most common nutritional deficiencies worldwide, results from insufficient levels of which mineral needed to produce healthy hemoglobin?
AIron
BPotassium
CZinc
DCalcium
What term describes the developmental period during which a young person experiences significant physical changes and typically becomes capable of sexual reproduction?
AInfancy
BAdulthood only
CPuberty
DMenopause
In discussions of heart health, cholesterol is often categorized into which two main types, commonly nicknamed ‘good’ and ‘bad’ cholesterol?
ARBC and WBC
BATP and DNA
CHCl and NaOH
DHDL and LDL
What term describes the natural biological process marking the end of a woman’s menstrual cycles and reproductive fertility, typically occurring around midlife?
AOvulation only
BGestation
CMenopause
DPuberty
What term describes crops whose genetic material has been deliberately altered using biotechnology to introduce specific desired traits, such as pest resistance?
AHybrid crops only
BOrganic crops
CGenetically modified organisms, or GMOs
DHeirloom crops
Growth hormone, which plays a key role in stimulating physical growth during childhood and adolescence, is produced by which gland?
AThyroid gland
BPituitary gland
CAdrenal gland
DPancreas
What agricultural practice involves growing different types of crops in a planned sequence on the same land across different growing seasons?
AOvergrazing
BCrop rotation
CMonoculture
DDeforestation