answer the questions in complete sentences. press turn in when done
1. what are the 2 major overall classifications of nutrients?
2. name at least 5 things that influence a persons energy needs?
3. on average, how many calories on average do people need?
4. what are some of the signs of not getting enough energy?
5. whats the primary indicator of someones body size?
6. how much does a persons body weight change on average between the beginning of the day and end of the day?

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Accepted Answer

### 1.
# Brief Explanations:
Nutrients are broadly classified into two major groups: macronutrients and micronutrients. Macronutrients are needed in large amounts (like carbohydrates, proteins, fats) and provide energy, while micronutrients (vitamins, minerals) are needed in smaller quantities for various physiological functions.
# Answer:
The two major overall classifications of nutrients are macronutrients and micronutrients.

### 2.
# Brief Explanations:
Several factors influence a person's energy needs. Age affects as metabolic rate changes with age. Gender: males and females have different body compositions and hormonal profiles. Body size/weight: larger bodies need more energy. Physical activity level: more active people need more energy. Metabolism: some have faster/slower metabolic rates. Also, health conditions (like thyroid issues) and environmental temperature (extremes increase energy use for thermoregulation) can influence. We pick five: age, gender, body weight, physical activity, and metabolism.
# Answer:
At least five things that influence a person’s energy needs are age, gender, body weight, physical activity level, and metabolic rate.

### 3.
# Brief Explanations:
The average calorie need varies by factors like age, gender, activity level. For adult women, it's around 1600 - 2400 calories per day, and for adult men, 2000 - 3000 calories per day. A general average often cited is around 2000 - 2500 calories per day for most adults, but this is a broad estimate.
# Answer:
On average, adult women generally need about 1600 - 2400 calories per day and adult men need about 2000 - 3000 calories per day. A common general average estimate is around 2000 - 2500 calories per day for most adults (this varies by many factors like activity, age, etc.).

### 4.
# Brief Explanations:
Signs of not getting enough energy (calories) include fatigue/tiredness, difficulty concentrating, dizziness, weight loss (unintentional), weakness, and increased hunger or cravings. Also, mood changes like irritability can occur as the body lacks energy for normal brain function.
# Answer:
Some signs of not getting enough energy include fatigue, difficulty concentrating, dizziness, unintentional weight loss, and weakness.

### 5.
# Brief Explanations:
The primary indicator of someone’s body size is body weight (mass) or body mass index (BMI, which relates weight and height). However, body weight (measured in kilograms or pounds) is a direct and common primary indicator of how large a person’s body is, as it reflects the total mass of the body’s components.
# Answer:
The primary indicator of someone’s body size is body weight (or body mass index, though body weight is a direct primary indicator of the overall mass of the body).

### 6.
# Brief Explanations:
A person's body weight can change between the beginning and end of the day. This is due to factors like food and fluid intake, urination, defecation, and sweating. On average, the weight change is about 1 - 3 pounds (0.5 - 1.5 kilograms). This is because we consume food and drink (adding weight) and lose water through various excretory processes (reducing weight), so the net change is usually within this range.
# Answer:
On average, a person’s body weight changes by about 1 to 3 pounds (or 0.5 to 1.5 kilograms) between the beginning of the day and the end of the day.

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