Differences in density of ocean water is important because it

In this assignment, you will write a story about how different foods travel through the digestive and excretory system from the

Reika [66]

d health

are explained on a nutrient level. The connection

of nutrients to dietary choices begins. Proteins,

Carbohydrates (aka “carbs”), Fats, Minerals,

Vitamins and Water are defined as the major

nutrient groups.

Focus and Engage

■ This chapter will make the students aware of the

food choices they make.

■ Help the students learn to evaluate foods for

nutritional quality.

■ Encourage the students to understand their

bodies’ needs.

Introduce the Section

a. Encourage the students to be aware of the varied

food choices available to them.

b. Discuss new food options and ideas with the

students.

c. Help the students to realize that nutrition is a

science, not just an opinion or a feeling.

2 Chapter 1 ■ The Food You Eat

1 The Food You Eat

Have you ever wondered how the food you eat fuels your body?

Why some foods make your body feel and perform better than others? Nutrition has the answers. The more you know about nutrition,

the better you will be able to make food choices that will keep you

healthy and strong and keep your body functioning optimally.

Adequate nutrition can help prevent certain diseases, maintain an

optimal body weight, and give you more energy to participate in the

activities you enjoy. There are six essential nutrients in the human

diet. Take a look at what’s on the menu in your school cafeteria

today, and see if you can identify items that contain these nutrients.

In This Chapter,

You Will . . .

■ Understand the science of

nutrition

■ Learn how proteins, carbohydrates, and fats comprise the

foods you eat

■ Learn about the benefits of

vitamins, minerals, and water

■ Discover what calories are and

how they are calculated

■ Learn about food additives

such as flavor enhancers,

preservatives, and coloring

Why YOU Need to Know This

2

Advance PreparationUSDA nutrient database (www.nal.usda.gov)

FDA Web site for label reading (www.cfsan.fda.gov)

Prepare Students will need colored pencils or markers

Paper for graphic organizers

Pop-beads—small costume jewelry or large baby toys that connect

Index cards or small pieces of paper

7 0

3 years ago

Read 2 more answers

5.05 Energy and Motion

bekas [8.4K]

True because it makes since and it’s a better answer than false

5 0

3 years ago

This bonds to cytosine (C) in DNA.

shtirl [24]

Answer: <u>Guanine </u>

According to Chargaff's rule, the base pairing in the DNA and RNA is fixed. Adenine always pairs with Thymine in DNA and Uracil in RNA. Guanine pairs up with cytosine. This complementary base pairing is universal and constant. That's why amounts are also equal. It means if cytosine is 20% in any DNA sample, then amount of guanine would be 20% as well.

4 0

3 years ago

Increasing the alveolar ventilation rate will Group of answer choices increase the partial pressure of oxygen in the alveoli. de

Pie

Answer:

Increasing the alveolar ventilation rate will increase the partial pressure of oxygen in the alveoli.

Explanation:

Alveolar Ventilation rate is the rate of air flow in the alveoli of the lung during normal breathing. It is measured in milliliters of air per minute (mL/min). The alveolar ventilation rate is an important factor in determining the concentrations (partial pressures) of oxygen and carbon dioxide in the functioning alveoli.

A high rate of alveolar ventilation, would result in a rapid influx of oxygen-rich air and efflux carbon dioxide-filled air from the alveoli. This ultimately results in an increase in the concentration of oxygen and a decrease in the concentration of carbon dioxide within the alveoli.

Effects of alveolar ventilation on partial pressures of alveolar carbon dioxide and oxygen (PACO₂ and PAO₂)

If the alveolar ventilation rate is increased (and carbon dioxide production is unchanged), then the partial pressure of carbon dioxide in the alveoli, PACO₂ will decrease.

If the alveolar ventilation rate increases, then the partial pressure of oxygen in the alveoli, PAO₂ will increase.

7 0

2 years ago

Using its long tail and long hind legs, the Ord's kangaroo rat can jump 2 m in the air as it hops away from predators, such as s

Mrac [35]

Answer and Explanation:

a. According to Lamarck, the origin of the long hind legs of the Ord's kangaroo rat is acquired due to extensive use of the muscle legs to jump. Such physical characteristics could be transmitted to future generations. This theory is called Neo-Lamarckism.

b. Darwin, on the other hand, theorized that in a population of Ord's kangaroo rat, there was an individual whose characteristics, long tail and hind legs, had more chances of escaping its predator and, consequently, could survive and reproduce. This theory is called Darwinism.

5 0

3 years ago