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3 years ago

With which archaic human species did some of the ancestors of modern europeans interbreed during the past 100,000 years

1 answer:

8 0

Around 100,000 years ago there was another species of the Homo genus living throughout Europe, he Homo neanderthalensis, or commonly called the Neanderthals. This extinct species was the closest relative to modern humans. Genetic studies of neanderthal DNA have shown that in modern humans that live outside of Africa there are3 to 4 percent of genes that have a neanderthal origin which implies that there were multiple interbreeding events in the history of these two species.

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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

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

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7 0

3 years ago

Read 2 more answers

How long ago did homo sapiens aprears

Sonja [21]

The homo sapiens appeared after two million years ago.Some of them spread from Africa into Asia and Europe.

7 0

3 years ago

Read 2 more answers

All of the following are effects of crossing over of homologous chromosomes during prophase 1 of meiosis with the exception of

Zolol [24]

Where are the options? This question can't be answered without it.

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2 years ago

Play(s) a key role in maintaining acid-base homeostasis by eliminating carbon dioxide. ________ play(s) a key role in maintainin

Ugo [173]

Answer:

The respiratory system

Explanation:

The respiratory system is one of the system in the body that play important role in maintaining acid-base balance in the body.
The respiratory system enhances acid-base balance through the regulation of blood pH. It can reduce the pH of the blood by removing carbon dioxide gas in the blood.
The regulation of Blood pH occurs as a result of chemical reactions that regulate the carbon dioxide levels and carbonic acid in the lungs when blood travels through the lungs.

3 0

3 years ago

Which component is affected when a catalyst is added to a chemical reaction.

olga_2 [115]

Answer:

the reactants, which can come together faster thanks to the catalyst, producing a product faster as well as a result.

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2 years ago