Help please , i have to turn this in

How does research into natural selection and traits help you understand why some butterflies have coloration that looks like the

QveST [7]

Answer/Explanation:

Natural selection - over time - selects for traits that improve fitness. A butterfly with wing coloration that looks like a hungry owl would certainly be a deterrent to their natural predators, such as smaller birds. This is because the owl is the predator of the smaller birds, and their instinct is to avoid the owl.

If a mutation arose that resulting in coloration that looked like an owl, (or at least slightly menacing) this would be beneficial to the butterfly, as it would be more camouflaged from predators. This means it would be more likely to reach reproductive age and pass the mutation onto its offspring, who would also have a competitive advantage.

Over time, this would lead to a population of butterflies with coloration that looks more and more owl-like .

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

Index cards or small pieces of paper

7 0

3 years ago

Read 2 more answers

Do ClownFish get along with, other fish, sharks,sea turtles and pelicans?

Evgesh-ka [11]

I'm no expert but probably not because eventually they'll get eaten as nature's way of stopping a population get too big (the food chain)

8 0

3 years ago

Write the definition of reactants

Pepsi [2]

It is a substance that takes part in and undergoes change during a reaction

3 0

3 years ago

How can I remember the definition of sticky end? Read below for the definition. I need help memorizing it.

mamaluj [8]

I’m not sure if this helps much, but try thinking of an Aloe Vera plant. When you cut into it, you expose the the sticky center. The part you cut has a “sticky end.” So, think of a knife as the restriction enzyme, and the plant as the DNA molecule that you’re cutting. Hope this helps.

3 0

2 years ago

Help please , i have to turn this in​

Help please , i have to turn this in