Biology: The Unity and Diversity o...

15th Edition

Cecie Starr + 3 others

ISBN: 9781337408332

Textbook Problem

1 views

Like other nocturnal carnivores, the ferret shown in Figure 33.16 has light-reflecting material in its choroid. Explain why the presence of reflective material in this layer of the eye maximizes the degree to which light excites photoreceptors. Explain also why having reflective material in this- layer causes the perceived image to be somewhat blurry.

Summary Introduction

To explain: The presence of light-reflecting material in eyes of nocturnal carnivores maximizes the degree to which light excites photoreceptors and also causes the perceived image to be blurred.

Introduction: Nocturnal animals refer to animals that are awake and active during the night. They have good night vision, keen senses of smell, touch, and hearing. They consist of a layer of cells tapetum lucidum behind their retina. It reflects light back through the eye. This enables them to see in dim light or dark.

Explanation

Refer to Fig. 33.16, “Eyeshine of a black-footed ferret” in the textbook. Ferret is a nocturnal carnivore that has light reflecting material in its choroid. The layer in the eye consists of tapetum lucidum that is located just behind the retina. When light enters the eye, it hits the mirror-like tapetum lucidum and reflects back leading to eyeshine effect...

Still sussing out bartleby?

Check out a sample textbook solution.

See a sample solution

Additional Science Solutions

Find more solutions based on key concepts

Show solutions

ScienceBiologyBiology: The Unity and Diversity of Life (MindTap Course List)15th Edition

Biology: The Unity and Diversity o...

Solutions

Biology: The Unity and Diversity o...

Still sussing out bartleby?

The Solution to Your Study Problems

Chapter 33 Solutions

Additional Science Solutions

Find more solutions based on key concepts

Name the three kinds of symbiosis and give an example of each.

. The frequency of the highest note on the piano is 4.186 Hz. (a) How many harmonics of that note can we hear? ...

Which of these foods should form the bulk of the pregame meal? a. breads, potatoes, pasta, and fruit juices. b....

When using a Geiger-Mller counter to measure radioactivity, it is necessary to maintain the same geometrical or...

When 2891 is written in scientific notation, the exponent indicating the power of 10 is .

Describe the components and possible pathways within the rock cycle.

What are the arguments for and against the use of dietary supplements?

To plan a healthy diet that correctly assigns the needed amounts of food from each food group, the diet planner...

Which of the following statements is/are true? For the false statements, correct them. a. All particles in the ...

In 2015, the U.S. national debt was about 18 trillion. (a) If payments were made at the rate of 1 000 per secon...

You are teaching a class of second graders some chemistry, and they are confused about an objects mass versus i...

A shopper pushes a grocery cart 20.0 m at constant speed on level ground, against a 35.0 N frictional force. He...

42. How many hydrogen atoms are in each of the following?

KEY TERMS 1. physics (intro) 2. position (2.1) 3. motion 4. scalar (2.2) 5. vector 6. average speed 7. distance...

Elemental phosphorus is made by heating calcium phosphate with carbon and sand in an electric furnace. What is ...

_______ can keep people with kidney failure alive, but it cannot cure them.

While working in Puerto Rico, Paul E. Hertz and his students studied a second species of lizard, the yellow-chi...

The _____ is the basic unit of muscle contraction. a. myofibril b. sarcomere c. muscle fiber d. myosin filament

A cell has a diploid number of 6 (2n = 6). a. Draw the cell in metaphase of meiosis I. b. Draw the cell in meta...

. explain the role of temperature in determining whether a reaction is spontaneous.

Case 1 2. The fact that the respiratory therapist obtained the same bedside spirometry results on the second te...

5-23 A sample of SO2 gas has a volume of 5.2 L. It is heated at constant pressure from 30. to 90.°C. What is it...

Answers to all problems are at the end of this book. Detailed solutions are available in the Student Solutions ...

MATHEMATICAL What would be the pH of the solution described in Question 41?

How did The Alfonsine Tables, The Prutenic Tables, and The Rudolphine Tables differ?

Greg is a well-groomed boy almost three years old. He has been growing as expected, but he does not talk. He ca...

Calculate the voltages of the following cells at 25°C and under the following conditions: (a) Zn|Zn2+(0.50M)Cd2...

A sample of H2C2O4.2H2O of mass 3.35 g is heated to drive off the waters of hydration (designated separately in...

30. Arrange the following three frequencies of light in order of increasing energy per photon:

A particle having mass m is described as having the unnormalized wavefunction =k, where k is some constant, whe...

Explain how recombinant DNA differs from normal DNA.

A firkin is an old British unit of volume equal to 9 gallons. How many cubic meters are there in 6.00 firkins?

What are this chapters three big ideas? Why is it in keeping with two of the three scientific principles of sus...

Review. A bullet of mass m is fired into a block of mass M initially at rest at the edge of a frictionless tabl...

Carvacrol is a naturally occurring substance isolated from oregano, thyme, and marjoram. What is its IUPAC nam

How Are We Affecting the Earth? Section 1.2 What are the two key concepts for this section? How have humans imp...

________ You see a yogurt product at the grocery store labeled fat free. This nutrient content claim means that...

The freezing-point depression of a 0.091-m solution of CsCl is 0.320C. The freezing-point depression of a 0.091...

For some alcohols, cis-trans isomerism (Sections 12-14, 13-6) is possible. Indicate whether each of the followi...

For each of the following classes of compounds, indicate whether addition or substitution is the most character...

Science
Biology Biology: The Unity and Diversity of Life (MindTap Course List)15th Edition