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DIA [1.3K]
3 years ago
6

What does Darwin's mechanism for evolution suggest about living and extinct species?

Biology
1 answer:
disa [49]3 years ago
7 0
Survival of the fittest is another way to describe the roll it plays seeing as that the organisms best fitted to survive an area will and can produce more of the fittest species; the ones who are best fit will die
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DNA is coiled into chromosomes in a cels
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Answer:

In the nucleus of each cell, the DNA molecule is packaged into thread-like structures called chromosomes. Each chromosome is made up of DNA tightly coiled many times around proteins called histones that support its structure.

Explanation:

7 0
3 years ago
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

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7 0
3 years ago
Read 2 more answers
A mass composed of fibrin and platelets that collect on valve leaflets or their cords is called a(n)
natali 33 [55]

Answer:

VEGETATION

Explanation:

It is referred to as an infected mass due to the production of bacteria in one heart valves. This infected mass can be due to bacteria in the bloodstream during any dental work, or any similar process related to bloodstream. This infected mass is called VEGETATION and related to endocarditis which is composed of fibrin and platelets.

6 0
3 years ago
Read 2 more answers
In the illustration below, label X is pointing to the A. antigens B. antibodies C. antigen-binding sites D. interferons In the i
12345 [234]

Answer:

The correct option is C: antigen-binding sites

Explanation:

The antibody is shaped much like the letter Y in the English alphabet. It has two antigen binding sites that are identical in nature. The specificity of these sites is determined by the amino acid sequence that makes it up. Antibodies are complementary to these antigen binding sites, and the antibodies have an incredible ability to recognize a great variety of antigens.

Hope that answers the question, have a great day!

6 0
3 years ago
Jenna notices that the speed of the wind has increased throughout the day. What is causing the faster wind?
Usimov [2.4K]

Answer:

Substainial wind

Explanation:

Be cause why not duhhh

8 0
3 years ago
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