What are the first three stages of the human life cycle? Select all that apply.
Childhood
Puberty
Prenatal
Infancy
Toddler
Correct Answer : C,D,E
A. Childhood generally refers to the period after toddlerhood and infancy, typically from ages 3–12. It is not one of the first three stages of the human life cycle.
B. Puberty is a developmental milestone within adolescence and occurs much later in the life cycle. It is not part of the first three stages.
C. The prenatal stage begins at conception and continues until birth. This stage encompasses all development within the womb, including cell division, organ formation, and growth, laying the foundation for life after birth.
D. Infancy follows birth and generally spans from birth to about 12 months. During this stage, rapid growth, motor development, and sensory and cognitive milestones occur.
E. The toddler stage typically covers ages 1–3 years. This stage is marked by increased mobility, language development, social interaction, and early learning experiences.
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
A. While adequate sleep is important for overall health, 5–6 hours per night is generally insufficient for most adults. Chronic sleep deprivation can actually increase the risk of chronic diseases such as obesity, diabetes, and cardiovascular disease.
B. Maintaining a healthy body weight and composition is a cornerstone of chronic disease prevention. Excess body fat, particularly visceral fat, is associated with an increased risk of cardiovascular disease, type 2 diabetes, hypertension, and certain cancers. A balanced diet combined with regular physical activity supports healthy weight and reduces chronic disease risk.
C. Alcohol consumption is not universally protective and can increase the risk of liver disease, certain cancers, and cardiovascular problems. Health guidelines do not recommend two drinks per day for everyone.
D. Physical activity is important for chronic disease prevention; however, it is most effective when combined with maintaining a healthy body weight and overall healthy lifestyle habits. Simply being physically active without attention to diet and weight may not fully prevent chronic disease.
Correct Answer is B
Explanation
A. Four hours is longer than the recommended safe time for perishable foods to remain at temperatures where bacteria can grow. Even with cool weather, bacteria multiply rapidly in the “danger zone” (40°F–140°F).
B. Perishable foods, including cooked meats, salads with mayonnaise, eggs, and cut fruits, should not be left out at room temperature for more than 2 hours (or 1 hour if the ambient temperature is above 90°F). Keeping foods on ice helps slow bacterial growth, but 2 hours is the generally accepted limit to prevent foodborne illness. After this period, foods should be discarded to ensure safety.
C. Thirty minutes is unnecessarily conservative for most outdoor temperatures. While shorter exposure is safer, perishable foods can remain safe for up to 2 hours under controlled conditions with ice.
D. Six hours far exceeds the safe limit. Perishable foods left out this long, even on ice, are at high risk for bacterial contamination and could cause foodborne illness.
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